![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/9_31b7ded2-297e-4001-96f5-88d63ba68aa0.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/11_673f843b-8a23-48d6-afbc-d7c5a9c0d666.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/16_d1bee0a0-a5a0-4afb-950c-3b143fcd6c46.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/10_f6c5aa7b-adc0-44dd-8715-76be5fb6f842.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/12_ca2b3857-5039-4bfe-96f8-4fa94b0e0866.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/13_b44972df-57f3-4a41-8a62-5f0971892811.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/14_84e34712-5328-4740-b036-4baad532d9a5.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/15_151a0a51-dee6-4921-a792-9c1fc7ae0464.jpg?v=1701939232&width=1600)
![4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters](http://honguan.com/cdn/shop/products/17_5d72643b-ab34-4a1a-ae2e-c9c3bda2e370.jpg?v=1701939233&width=1600)
4 Inch Rubber Coupler Connector Noise Reduction Clamp for HVAC Inline Duct Fans & Carbon Filters
- Dust collection fittings, used for connecting ventilation fittings, suitable for inline duct fan, carbon filters, or 6 inch to 4 inch duct reducer.
- Excellent material, the flexible cuff coupler material has good hardness and softness, can perfectly fit all 4 inch accessories
- Dryer vent connector noise is minimized by absorbing fan vibrations and sound waves generated by airflow through the ductwork.
- The ends are held in place by clamps, making it a better choice than other common connecting fittings.
-
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