Repa Market 6" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods

Great if you want to lose some inches. Size matters here

So often dust collector fittings are too loose, or too tight, or too thin, or too whatever. In this case, the 6 to 5 adapter was perfect-- allowing me to connect my 6" DustDeputy port to a 5" hose without leaks. Furthermore, it is a seamless made from heavy guage metal so no bending or distorting. Well worth the extra couple of extra dollars compared to standard sheet metal fittings.

Was looking for a 12 in reducer for hvac. And this was about all I have been able to find to date. It is nice but heavy for the use I needed so will possibly have to add some extra support for it.

Excellent 10” to 8” duct reducer. It’s very round and fit great where I needed it

I use this fitting for part of my dust collector with aluminum tape. It works great. it doesn’t fit on the dust collector but with the tape it’s a pretty solid connection.

This thing is decently constructed, easy to work with and priced fairly. I used it to neck up from 3" to 4" ducting, reducing pressure in my bathroom exhaust system. Which allowed the pipe clamps to retain the ducting better. Would buy again.

Excellent conversion with seals.

A perfect solution for us. Old house didn’t have space around existing drier vent pipe.

Pièce très solide. Très satisfait

ممتاز

Perfecto,🙋👍👏

Encaja de marabilla diversos pliegues para poder ajustar xfcto.....de calidad

Justo lo que necesitaba, buen material, robusto y de calidad. Para canalizar el humo de un asador hacia la chimenea.