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4 to 3 Inch Duct Reducer, Hon&Guan Galvanized Steel Duct Increaser 4 to 3 Duct Reducer for 3/4 Inch Duct, Inline Duct Fan, Grow Tent Ventilation System-Black.

4.9 (9) Write Review
Free shipping on orders over $29.99

$12.99

$ 5 .99 $5.99

In Stock

1.Color:Black


2.:4in To 3in


  • 💡【APPROPRIATE SIZE】: On one side there is a 99mm Female Spigot（inner:98mm） - Will fit into 4'' dust collection hose/4 inch fan. On the other side there is a 74mm(inner:73mm) Male Spigot - Will fit into 3 inch duct/exhaust fan.
  • 💎【DURABLE MATERIAL】: 4 inch to 3 inch duct reducer made of galvanized steel, which is stronger and more resistant to high temperatures than ordinary plastic or pvc duct reducer, and is suitable for dryer vent environments.
  • 🔧【EASY INSTALLATION】:No tools are needed to install the 4 to 3 reducer, our calibre makes it easier to fit your duct on, and with the purchase of Hon&Guan hoses, clamps are included to make the duct connection between your reducer and the hose even tighter.
  • ⭐【WIDELY APPLICATION】: 4in to 3in duct reducer designed for widely used, such as air-cooled hoods, garage, attic, bathroom kitchen extractor fan, hydroponics and HVAC ventilation systems, plastic rigid ducting is perfect for DIY and trade use.
  • 💖【Buy with Confidence】:We promise to ensure your absolute satisfaction with every purchase. Risk-free shopping. If you are not satisfied about thisdust collection reducer, you can replace it for free .


Product Description

8 flex duct exhaust vent flexible duct fan inline fan bathroom exhaust fan dryer vent
exhaust vent bathroom duct connector dryer vent wall plate soffit vent greenhouse ventilation
hose dryer vent cover duct connector dryer vent wall plate soffit vent gable vent

Selection Tips

  • The inner diameter of the hose needs to be larger than the outer diameter of the reducer.
  • The outer diameter of the connected fan needs to be smaller than the inner diameter of the reducer.
6 inch exhaust vent flexible duct fan inline fan bathroom hose dryer vent cover

Connected to Ventilation System

The air duct adapter is designed to paired with exhaust fans and dust collectors for bathroom exhaust fans, HVAC systems, inline ventilators, range hoods, tumble dryers, hydroponics, kitchens and so on.

6 inch exhaust vent flexible duct fan inline fan bathroom hose dryer vent cover

Connected to Dryer Vent Hose

Connecting different sizes and material of ducting, even solid or flexible ducts ,can be fixed with clamps. Quick installation and no tools required


Brian
2025-07-07 15:33:02
Great quality and fit
ABR6578
2025-06-26 19:02:54
Works as advertised.
gustavooh
2025-05-23 11:35:24
fit ok
Sergey Rytikoff
2025-05-18 11:51:03
Great product, easily installable
Dennis Lee
2025-05-13 11:01:40
Works with my Chinese diesel heaters; HCalory, and WipPro both.
florin
2025-02-18 18:52:37
Great reducer from 6 to 4 inch exhaust fan pipe,it's shorter than home.depot ones so fits better in tight attic spaces
GJJB
2025-01-31 11:57:27
The 4-in side of this adapter seems great, even though they're dimensions listed are not correct. But the 6-in side is way off the mark. I was unable to fitted ovary 5-7/8 collar.... It was close, but I couldn't do it. So I need to return this, which is unfortunate because it is well made, solid, and looks great. See my picture for the actual dimensions.
Katalina Conway
2025-01-15 13:04:57
As described
Jose Luis Munguia
2024-12-25 12:02:32
Funciona muy bien. Fácil de instalar. Se ve muy bonito.