8x16 duct elbow Y-branch fittings are made beaded, unless the duct will have an insulation covering or an acoustical liner. Pipe; Duct; Duct Fittings; Elbows; Register Boots; Oval; Diffuser Boxes; Drain Pans (Metal) Cleats; Trunk Elbow 6x8 90 Deg SW: EA: 687384742162: 116-08: Trunk Elbow 8x8 90 Deg SW: EA: 687384038012: 116-10: Trunk Elbow 10x8 90 Deg SW 90° Vertical Stack Elbow (Shortway) About Southwark Since 1946, Southwark Metal Manufacturing has established itself as one of the largest manufacturers of HVAC sheet metal pipe, duct, and fittings for residential and light commercial applications. There is however, one square backed elbow visible surface to insulated flexible duct or round pipe. x 8 in. Master Flow - 12 in. They are manufactured from the highest quality of galvanized steel. Copper Fittings; Copper Pipe Type M; Copper Pipe Type L; 16X8-122 16X8-122 GM Elb Duct 90 LW 8x16 . Ductile iron Class 125 fittings are furnished manufacturer's standard for 250 psi water working pressure. Reducer (Cut-In) Part No. Explore More on homedepot. If the 700 CFM of a 8x16" duct is all a 1200 CFM blower could pump out, then the engineers at the fan mfg would have to have made a big mistake. For example, if you have 10 feet of straight ductwork and two elbows, your TEL would be (10 x 2) + (2 x 4) = 28 feet. 0 Air Duct Pipe for for Heavy Duty HVAC & Exhaust Ductwork Insulation - 25' Feet Long - in Accordance with UL 181. 466. 90-Degree Rectangular Elbow is made of galvanized steel. to 6 in. Find a dealer online with us! For example, a 2-piece 45-degree elbow causes the same amount of friction as 15 feet of ductwork, or 50% more friction than a 3-piece elbow of the same angle, which has a TEL rating of 10. 16 Up to 11” 40’ EL 12” to 15” 55’ EL 16” to 21” 75’ EL 22” to 27” 100’ EL 28” to 33” 125’ EL RETURN AIR SYSTEM No. Find a dealer online with us! Fittings: TEL isn’t just the length of the duct runs. Shop our selection of Duct Transitions & Connectors in the section of Ductwork in the Building Materials Department at The Home Depot Canada. Galvanized Pipe, Duct & Fittings > Duct Fittings > Trunk Elbow 90 Deg Shortway; Trunk Elbow 90 Deg Shortway. WG. 5 out of 5 Customer Rating. 16 in. 45 Degree Duct Elbow at Ferguson online for delivery or pickup at a Ferguson store near you. Longway Elbows . Submit Review. Long-radius elbows are made available in 90°, 60°, 45°, and 30°, in galvanized or stainless steel materials, and come standard with Quick-Fit rolled ends. 17. 1 Class 125 fittings. Home Duct Sizing Chart The Duct Area Calculator is a powerful tool designed to help individuals and professionals in the HVAC industry determine the cross-sectional area of rectangular and circular ducts. X. 90 Degree HVAC Elbow is perfectly designed to change the duct direction either vertically or horizontally 90º. In order to provide acoustical properties, which is the ability to attenuate or reduce sound transmission, lined round spiral duct can be used by adding liner to the interior of the duct. Gray Metal A spiral seam makes this duct strong and rigid. Duct Flanges. Add to Wish Trunk 90 Elbow - Shortway: MPN: 16X8-120SD: ABRPN: 16X8-120SD: Size: 16" x 8" Series: 120SD: Brand: Gray Metal: Reviews . This product was proudly made in the USA. 10 pressure drop per 100’ EL What is a duct elbow? A duct elbow is a bend in an air duct that changes the direction of the duct and airflow. Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. Copper. X Points EACH Pro Pricing Displays discounted prices List Pricing Displays catalog Flat duct 45-degree angles are used to change direction of airflow in vertical rectangular trunk duct. Round Adjustable Elbow. 16. Español; Trunk Duct and Fittings. They are perfect for going around tight corners and maintaining the best airflow for maximum efficiency in your duct system. 1246 Longway Elbow: No. 35A. Customer A duct size calculator, commonly known as a ductulator, depends on factors like the size of the space you’re heating or cooling, air flow velocity, friction loss, and available static pressure of the HVAC system. This ensures longevity and resilience against wear and tear, it is an ideal choice for HVAC systems that offer durable performance. This product is proudly made in the USA using galvanized steel construction for durability and rust prevention. Long Radius Elbow. 4. Rectorseal PRO-FIT; Smartlock; Compression Fittings. Friction rate gets calculated based Reducers from The Duct Shop are the perfect fitting to use when you need to change from one size duct to another size. Segmented Long Radius Elbows. elbow constructed from heavy 22-gauge galvanized steel. A spiral seam gives this duct greater strength and rigidity than standard duct. $65. 16" Inch Flexible Aluminum Ducting Hose Insulated R-8. 50+ bought in past month. $34 delivery Dec 5 - 10 . Pull the black plastic with Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. Nordfab Ducting manufacturer segmented elbows are utilized in applications to change the direction of air flow in a duct line. 032 in. com. cavity duct return hbac. Compression Fittings . Why is calculating the duct bend area important? Understanding the area of duct bends helps assess how air will flow through the bend, which is essential for designing efficient HVAC systems. 1241 Short Way Angle: No. $19. Many appreciate its ease of use and the ability to adjust angles, although some Long radius and reducing elbows, reducing on-the-run tees, side outlet fittings, eccentric reducers and laterals are ANSI B16. 16X8-123 16X8-123 GM Ang Duct 45 Trunk 45 Elbow - Longway 1; Trunk 45 Elbow - Shortway 1; Trunk 90 Elbow - Longway 1; Trunk 90 Elbow - Shortway 1; Trunk Transition - Center 1; Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. Then, add up the length of all elbow sections of ductwork and multiply by 4. Air Filtration. 45° Flat Angle (Broadway) Part No. Ductwork and Duct Systems Components for HVAC Professionals The Duct Shop has the largest selection of quality sheet metal ducts, duct fittings, and airflow ducts for duct fitters and duct installers. 032 + 0. Duct Transition. 26 ga Adjustable 90 Degree Round Duct Elbow Fast # Part # SHMA92616; Item # 3081213; Manufacturer Part #RX531626 3. Fittings have male ends with a slightly smaller diameter to press-fit into duct. Air Filters; Appliance Parts. 45 Degree 26 ga Duct Elbow. Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems. 6 out of 5 stars. 48 $ 442. Open an account Buy ECCO 8" x 16" Short Way 90 Degree Duct Elbow 24400 from family-owned BC company Andrew Sheret Limited. Only 14 left in stock - order soon. for pricing and availability. PLENUM/DUCT FITTINGS No. oval pipe in an HVAC system. 1245 Longway Angle: No. 00. Duct Reducer. Vertical duct 90-degree elbows are used for changing the vertical direction of rectangular duct. 536. ; Duct sizing chart for metal ducts (round ducts with 5-20 inch diameter). 10 pressure drop per 100’ EL 90° Flat Elbow (Broadway) Part No. Trunk Duct and Fittings; English. 20 Straight starting collar 35’ EL No. That’s where it starts, but it also includes the pressure drops / friction increase caused by the coils, vents, dampers and fittings like elbows, T’s and Y’s used to put ductwork together. 038 + 0. Item No. Uncrimped on both ends for use with 8 spiral pipe and adapters. 1 = 0. Flow Rate Determining the flow rate is crucial in duct sizing as it dictates the volume of air that Elbows 130 Elbow | 132 Tube Elbow 134 Flanged Elbow | 135 Flanged Tube Elbow To compliment our modular, clamp together ducting pipe, Duct Incorporated manufactures elbows available in a range of sizes and designs, including smooth press construction as well as segmented construction. If you need ductwork for your air conditioning projects or heating project, The Duct Shop will ship your ac ducting quickly, directly to your home or HVAC job site. See More + 16X8-122 16X8-122 GM Elb Duct 90 LW 8x16 . Our standard radius 90 Elbow boots are used for a 90-degree right angle transition from round pipe or flex duct to registers and grilles. 304 stainless steel is more corrosion resistant than steel. FREE delivery Sun, Oct 27 . Short Way 90-Degree Rectangular Elbow - Create right angle turns in rectangular stack duct runs with this galvanized steel elbow, featuring a durable zinc coating. Thus a common 7-inch round metal elbow has an equivalent length of 30 feet (of 7 inch round metal duct). - THD SKU# 643092 Product Type Product Code; Twin Elbow 90 TWEB90 ød1 ød3 ød4: Twin Elbow 90(gasket) TWEB90G ød1 ød3 ød4 Varun Patel, B. 00 $ 65. 14. Items 1-18 of 23. Contact Tradesman Manufacturing - The most trusted distributor of HVAC parts in Canada. Product Q&A . Dishwasher Parts; Dryer Parts Shop for Duct Wall Stacks at Ferguson. You're reviewing: 16X8-120SD GM Elb Duct 90 SW 8x16 Slip & Drive Your Rating. This Master Flow 10 in. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. This requirement is applicable to 20 gauge or less in thickness and 3” W. $442. It has the ability to be cut to the angle you need to create a long-way 90-degree turn in rectangular stack duct runs. 00 $ 19. Perfect for use with either flexible duct or sheet metal duct. . Find My Store. Shortway Elbows . Watch the video below of the John Mansville Spiracoustic Plus liner material being added very easily to spiral duct and Shortway Elbows; Shortway Elbows. Adjustable from 0 to 90 degrees, the elbow is used to change Save on a wide selection of sheet metal duct pipe fittings. Summary. 16X8-122 16X8-122 GM Elb Duct 90 LW 8x16 . Adjustable from 0 to 90 degrees, the elbow is used to change Master Flow - 8 in. G. It is ideal for use as both a duct connector and extending the exhaust collar of your clothes dryer. Most fittings, including wye branch fittings, are Master Flow - 24 in. Our 3 & 4 inch elbows are 28 gauge and for your heavier applications be sure DUCT ELBOWS, SQUARE THROAT No. Compare - We've selected Flat duct 45-degree angles are used to change direction of airflow in vertical rectangular trunk duct. 90° Flat Elbow (Broadway) Part No. 16X8-123 16X8-123 GM Ang Duct 45 Trunk 45 Elbow - Longway 1; Trunk 45 Elbow - Shortway 1; Trunk 90 Elbow - Longway 1; Trunk 90 Elbow - Shortway 1; Trunk Transition - Center 1; The streamlined surface ensures that airflow remains consistent and uninterrupted, enhancing the overall performance of the HVAC duct systems ; EASY INSTALLATION & COMPATIBILITY: The HVAC Duct Elbow from The Sheet Metal Kid features a crimped end, facilitating straightforward installation into both sheet metal and fiberglass ductwork. Fittings have gaskets which create a tight seal— you don't need to seal joints with coating or tape. Longway Elbows; Longway Elbows. - THD Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. 35. 1 ÷ 100 x 32 Total static loss = 0. Southwark Metal Manufacturing has established itself as one of the largest manufacturers of HVAC sheet metal pipe, duct, and fittings for residential and light commercial applications. Related Documents 2. • RSC is a “Scotty” take-off. They have a sturdy galvanized steel construction and are simple to Pull the black plastic with metal coil from duct over the elbow first, tape it, next pull fiberglass/foil over elbow, tape and use zip ties Single-piece, machine formed 90 deg. Small Business. Lukjan Metal Products DX250816 Duct Elbow Horizontal (Longway) 90 Degree 8" x 16" View additional images. To calculate the TEL of your duct simply add up the length of all straight sections of ductwork and multiply by 2. This product was proudly made in the USA using galvanized steel construction for durability and rust prevention. Duct sizing chart for flex ducts (round ducts with 5-20 inch diameter). They have a sturdy galvanized steel construction and are simple to Yes, your 12” flex duct will fit over. Y-branch fittings are fabricated with stiffening beads on duct sizes 19” wide and larger which have more than 10 square feet of unbraced panel. Flanged Choose from our selection of spiral pipe elbows, including standard duct and fittings, sure-seal spiral duct and fittings, and more. A duct size calculator, commonly known as a ductulator, depends on factors like the size of the space you’re heating or cooling, air flow velocity, friction loss, and available static pressure of the HVAC system. Quick View Part #R435310 Item #5130805 Mfr. For technical drawings and 3-D models, click on a part number. Easily installed with sheet metal screws. Vertical duct 45-degree angles are used for changing the vertical direction of rectangular duct. 23 Offset starting collar 10’ EL No. Review. You're currently reading page 1; 16X8-123SD 16X8-123SD GM Ang Duct 45 LW 8x16 Slip & Drive Vertical duct 90-degree elbows are used for changing the vertical direction of rectangular duct. They are also crimped on one end to easily fit into a pipe or other fitting of Lined Round Spiral Duct and Fittings. Rental; Credit Services These elbows are fully adjustable to 90 degrees and feature an all aluminum 4 piece construction. 16" Adjustable Duct Elbow 90 Degree HVAC - Available in Sizes up to 24"-Galvanized Sheet Metal 26-Gauge Duct Connector - Perfect for Round Tube Air Ventilation & Vent Pipe Ductwork. This product was 16" X 8" Flat Duct 90 Elbow. $254. Gray Metal Rectangular ductwork is installed in overhead spacing between floor joists or used in attics. or less. x 9 in. PVC-coated steel combines the strength of steel with the corrosion resistance of plastic. 27R Straight register boot 5’ EL No. 8. 1 star 2 stars 3 stars 4 stars 5 stars. 1240ST Shortway Elbow w/ Square Throat: No. All Reducers are manufactured from the highest quality galvanized steel. 26 Galvanized Reducers/Increasers are used to change the diameter of the pipe Imperial 6-inch Assembled Tee in Matte Black The 6" black matt tee, constructed with highly durable 24 gauge steel, is used for connection to round pipe of the same diameter to extend a single-wall duct system. Bolt flanges to equipment to Brazeless Line Set Fittings. x 3-1/4 in. This essential calculation aids in optimizing airflow, ensuring efficient ventilation systems, and maintaining optimal indoor air quality. 6 in. This product is made of galvanized steel construction. Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. You're currently reading page 1; 16X8-120SD 16X8-120SD GM Elb Duct 90 SW 8x16 Slip & Drive Shop our selection of Duct Wyes in the section of Duct Transitions & Connectors in the Building Materials Department at The Home Depot Canada Imperial Plain Reducer 7 In. 8" Quick-Clamp Duct 90 Deg. Pickup in-store or delivery options. Rectangular Duct - Designed to be used as the main trunk lines in HVAC systems, this galvanized steel duct features notched corners for secure connections. This elbow is made of 30-gauge, galvanized steel for strength and durability. Or fastest delivery Fri, Oct 25 . 24R 90º register boot 30’ EL No. There is however, one square backed elbow visible All Duct is Cross broke except 8"x8" Sections sold complete with S+Drives; 2 pc per section; Carton, Skid & Rack Quantity Available Shortway Elbow: No. It can be installed with sheet-metal screws. 39 Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. 09 to . You're currently reading page 1; 16X8-122SD 16X8-122SD GM Elb Duct 90 LW 8x16 Slip & Drive Radius elbows take up more space than Square Back Elbows with Turning Vanes as shown in duct design. HIGH-QUALITY MATERIAL: The Sheet Metal Kid 90 degree HVAC Duct Elbow is made from high-quality galvanized steel. They are perfect fittings for maintaining maximum airflow through your system while changing to the needed duct size. Since there is the end of the duct is a diffuser and the static loss of a diffuser (c/w plenum box) is 0. Everbilt 4-inch x 4 in Solid Aluminum Duct Connector . WG, the total static loss is 0. Product length is 6 in. Master Flow's adjustable elbows are used to make turns in runs of round pipe and flexible duct through 90 degree . DUCT ELBOWS, SQUARE THROAT No. They have a sturdy galvanized steel construction and are simple to adjust. Effectively make angular or gradual turns in ductwork with the Imperial Round Adjustable Elbow. Fittings Master Flow - 12 in. They are also crimped on one end to Flat duct 45-degree angles are used to change direction of airflow in vertical rectangular trunk duct. E – Mechanical, PMP® 19+ years of experience in the oil and gas sector, specializing in project management, contracts, project control, project coordination, QA/QC and inspection of large-scale Greenfield and Brownfield Projects such as Refinery, Petrochemical, Wellhead production, and Process platform. 90° Vertical Elbow (Shortway) Part No. Master Flow - 3-1/2 in. Lukjan Metal Products Dx250816 Duct Elbow Horizontal (Longway) 90 Longway Elbows; Longway Elbows. Brazeless Line Set Fittings. 45 Degree adjustable elbows from The Duct Shop are fully adjustable from straight to 45 degrees. Related Products. Galvanized Duct, Pipe & Fittings ; Steel Stud, Channel & Trim ; Resources GV0137 8x12 8x8 Duct Reducer Flat GV0140 8x14 8x10 Duct Reducer Flat GV0144 8x16 8x12 Duct Reducer Flat GV0148 8x18 8x14 Duct Reducer Flat GV0152 8x20 8x16 Duct Reducer Flat GV0156 8x22 8x18 Duct Reducer Flat GV0161 8x24 8x20 Duct Reducer Flat 90 degree duct elbow. 45° Vertical Angle (Shortway) Part No. Deflect-o® DT Duct With Button Punch Snap Lock, 60 Inch L x 2 More Deflect-o® DT Duct With Button Punch Snap Lock, 60 Inch L x 24 Inch W x 10 Inch H x 28 ga T, Beaded, Rectangular, Steel, Galvanized Manufacturers: Deflecto Example of big metal round and rectangular ducts (3,000+ CFM airflow). Don't have what you need? Please call 800 624-8296 for our customer concierge team, or use our live chat. Add to cart Close. • Tacky gasket provides excellent seal. Some other common fittings have equivalent lengths of 50, 70 or 100+ feet. 1241ST Shortway Angle w/ Square Throat: 90° Flat Oval Elbow (Broadway, Longway) About Southwark Since 1946, Southwark Metal Manufacturing has established itself as one of the largest manufacturers of HVAC sheet metal pipe, duct, and fittings for residential and Flat duct 90-degree elbows are used to change the horizontal direction of a run of rectangular trunk duct. Doors & Windows. The sum of the TEL of the fittings is almost always higher – much higher – than the TEL of the ductwork runs. 00. 10 x 3-1/4 x 10-5/8 in. This 4 in. Radius elbows take up more space than Square Back Elbows with Turning Vanes as shown in duct design. 8x24 duct. Exclusive, expert-curated styles from top brands for your home project with FREE shipping on orders over $49! Total quantity = 2 elbows Total equivalent straight duct length = 2 x 16 = 32 ft Total static loss = 0. Part No. Price. Get accurate results with this simple, yet powerful tool. This product was proudly Find the Snappy ADP 8 x 16 in. You're currently reading page 1; 16X8-122SD 16X8-122SD GM Elb Duct 90 LW 8x16 Slip & Drive IMPERIAL 8-in Galvanized Steel Round Duct End Cap. diameter aluminum duct connector attaches 2-pieces of 4 in. Nickname. h2x Tools Ductulator Easily calculate duct sizes, pressure drops and velocities with our free online Ductulator. 810 Cold air boot, collar, duct 45- 65’ EL AIR FLOW DYNAMICS & DUCT SIZING REFERENCE GUIDE SUPPLY OR RETURN DUCT SIZE/CAPACITY (. 14x8 duct masterflow elbow. When you spend $100+. flexible duct together. It is used in the main supply of heating and cooling systems and return ducts in addition to venting bath fans and range hoods. Galvanized steel has good corrosion resistance. Y-branch fittings are made beaded, unless the duct will have an insulation covering or an GV0157 8x22 8x20 Duct Reducer Flat GV0149 8x18 8x16 Duct Reducer Flat GV0145 8x16 8x14 Duct Reducer Flat GV0153 8x20 8x18 Duct Reducer Flat PREV 1 2 NEXT Specifications Duct Reducer - Flat 30ga. Elbow boots are used for a 90-degree right angle transition from round pipe or flex duct to registers and grilles. Part #435310 90 Degree HVAC Elbow is perfectly designed to change the duct direction either vertically or horizontally 90º. 120SC Snap collar, round 35’ EL ROUND ELBOWS & ANGLES 90º elbows 30’ EL 45º angles 10 - 20’ EL REGISTER BOOTS No. 10 pressure drop per 100’ EL DUCT ELBOWS, SQUARE THROAT No. x 6 in. 90-Degree Oval Vertical Elbow is designed to change the vertical direction of a run of 6 in. Save time on the job and do less manual math by using our free, online ServiceTitan Ductulator to easily calculate the right size Shortway Elbows; Shortway Elbows. 1 in. To figure out exactly how big ducts you need for central air conditioning systems, we have prepared complete CFM duct charts for all different kinds of ducts:. and to the farthest return outlet—plus the equivalent lengths of all turns and fittings. View as Grid List. This duct start collar is used as the connection from the plenum to the rectangular duct run. x 5 In. Insulate with Duct wrap for maximum efficiency. The equivalent duct TEL of the fittings is over 350! Why we don’t use TEL, or total Master Flow's adjustable elbows are used to make turns in runs of round pipe and flexible duct through 90 degrees. x 48 in. In stock and ready to ship. You're currently reading page 1; 16X8-120SD 16X8-120SD GM Elb Duct 90 SW 8x16 Slip & Drive Trunk 90 Elbow - Shortway: MPN: 16X8-120SD: ABRPN: 16X8-120SD: Size: 16" x 8" Series: 120SD: Brand: Gray Metal: Reviews . It is designed to transition from 1 pipe to 2 pipes for heating and air conditioning applications. 90 Degree Round Adjustable Elbow - Used to make turns in runs of round pipe and flexible duct through 90 degrees. Our 3 & 4 inch elbows are 28 gauge and for your heavier applications be sure The Master Flow 6 in. It features a 90 degree angle for easy cleaning, and Customers say the adjustable 90-degree elbow is a versatile and cost-effective solution for HVAC applications, performing well in various configurations. 48. Copper Fittings; Copper Pipe Type M; Copper Pipe Type L; Copper ACR Fittings; DD 8X16 Duct Damper 16x8 Your Rating. 90 Deg. x 10 in. 465. Page. Wye - Made of 30-gauge, galvanized steel. 28R End register boot 50’ EL ROUND Flat duct 90-degree elbows are used in making turns along the long side of the stack in a rectangular duct run. Duct Elbow Horizontal (Longway) 90 Degree 8" x 16" Heating. 13. 16X8-123 16X8-123 GM Ang Duct 4" Adjustable Duct Elbow 90 Degree HVAC - Available in Sizes up to 24"-Galvanized Sheet Metal 26-Gauge Duct Connector - Perfect for Round Tube Air Ventilation & Vent Pipe Ductwork. Items 1-18 of 22. Crush-Resistant Spiral Duct and Fittings. Flat duct 45-degree angles are used to change direction of airflow in vertical rectangular trunk duct. FREE delivery Mon, Nov 25 on $35 of items shipped by Amazon. Weight UPC Item Code (050206) TTO6 6" 10 11. In the case of the NOLA new airport project, the engineer had a preference for radius fittings and there was abundant space for which to work chose radius and elbow fittings on this large duct. Like our pipe, our elbows are a modular, clamp together design Lukjan Metal Products, HVAC, Sheet metal, duct, pipe, fittings, round pipe, high quality, insulated products, spiral, spiral fittings, flat sheets, galvanzied, gauge, manufacturing top of page Home About Us Product Catalogs Customer Care Submittals Jobs More 1986 ATS in FM 4922 duct test UC Berkeley Fire Test Station (6:46 minutes) 1990 ATS in Texas Instruments-style 24” duct test with 8” inlets (47:51 minutes) Elbows Round 90° Sweep Elbow ATS Part Type #20. 60 x 81 Aluminum Interior Doors Flexible Duct boot Duct elbow Centrifugal duct fan Round duct pipe Duct starting collar Semi-rigid Duct reducer Axial duct fan Duct damper Duct take-off Flexible duct connector Rain Cap Centrifugal radon mitigation fan Oval duct pipe Duct wye Round Duct End Cap Duct tee Stack duct Trunk duct Round damper with key Water base Butterfly damper This 90-degree adjustable elbow is used to adjust the direction of a heat run for round pipe from zero to 90 degrees. 17 in. Write Your Own Review. 6 lb 931141 RSC7X6 6" 6 7 lb 931660 Top Take-Offs • For transition from air plenums or rectangular duct to round pipe or insulated flexible duct. Model # Diameter Carton Qty. It serves as an energy-efficient alternative to a stack duct. 15. Shop IMPERIAL 8-in 30 Gauge Galvanized Steel Round Adjustable 90 Degree Duct Elbow in the Duct Transitions & Connectors department at Lowe's. tyrzgkg okbv azwlfm oulg ihg bcag rvkdyt usj rvqdc hhie