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8 Inch Duct Connector Flange,Metal Square Pipe Connector to Round Interface Air Duct Metal Straight Pipe Flange for Ventilation,Cooling, Heating and Air Conditioning Systems

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$14.39

$ 7 .99 $7.99

In Stock

About this item

  • Flange Parameter: 200 mm / 7.9 inch; Diagonal Mounting Hole Distance: 210 mm / 8.3 inch; Distance Between Adjacent Mounting Holes: 120 mm / 4.7 inch; Base Size: 220 x 220 mm / 8.7 x 8.7 inch.
  • Features: The Duct Connector Flange is made of well quality galvanized material, which is anti-corrosion, cold-resistant, high-temperature resistant.
  • Wide Application: Air Duct Flanges are widely used in air duct systems in industries such as construction, chemical, machinery, and food factory,home, kitchen, bathroom, garage and The surface of the ventilation flange is smooth, which is also can connect air ducts and the ventilation system. It applied to the 8 inch Square Tubes, Circular Interface Duct.
  • Tips: You can choose different diameter sizes of flanged duct fittings in this purchase page, so please confirm the appropriate model outer diameter before placing an order.
  • Package List: 8 inch Duct Connector Flange.



Description

  • Material: galvanized
  • Product Type:8 Inch Duct Connector Flange
Features
  • anti-corrosion, cold-resistant, high-temperature resistant.
Package Includes
  • 8 Inch Duct Connector Flange .
Applicable Scenarios
  • Duct flanges are widely used for air ventilation systems in homes, kitchens, bathrooms, garages, factories, etc. What's more, it can be used on welded exhaust pipe, spiral exhaust pipe, exhaust pipe elbow fittings, fan hose connector
  • It applied to the 8 inch Square Tubes, Circular Interface Duct.Specification


Note:
Please pay attention to selecting the appropriate connection diameter before placing an order.









Nick
Reviewed in the United States on July 6, 2025
I bought this for a water heater installation where the previous duct work was shoddy and certainly not up to code. That means that it will be used with rigid duct, instead of the flexible duct that it was designed for; more on that later.First of all, this thing is far more heavy duty than I would have expected for anything duct related, which I appreciate. Initially I thought I was overpaying due to the fact that it's not a piece easily found in stores, but after feeling the build quality, I would say the price is fair, if a bit on the high side of fair.As mentioned before, this is for flex duct, and thus adapting it to rigid duct wasn't perfect, but I was able to make it work. You're not going to get the crimped end of an 8" duct to fit into this, even if you crimp it more yourself (believe me, I tried.) However, if you flare the duct out a bit instead, you can get it to slide over this piece, and then attach it with screws and flue tape, which is what I'm doing for my install. Because the tolerances are so close, the fitment is very snug, which I found to be beneficial in lieu of a standard install where this would be the female piece.Overall, highly recommend for flex duct applications, and even rigid duct, if you're willing to work around the size limitations.
Dani B.
Reviewed in the United States on June 30, 2025
Nice part, drawn so no seam. Fits perfectly inside 8” duct, close enough to seal with silicone.
Andyk1
Reviewed in the United States on June 17, 2025
Worked just fine for what I needed it for.
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