Duct Reducter 6 to 4 Air Ducting Reducer Increaser Air Duct Adapter or Round Metal Pipe Reducer for Bathroom Kitchen Ventilation Systems

This duct reducer was a heavy duty unit. I was surprisingly pleased with the thickness of the metal and its construction..

Exact size. Does not slide into fan housing duct. Although this doesn't work for me, the product is metal and good quality.

For anyone trying to reduce the input and/or output of an 8" AC Infinity fan, these fit perfectly over the fan inlet and outlet. They fit so good you could probably get away without a tape seal. This was hard to tell if they would work, so I took a chance and these are cheaper than the AC Infinity ones that have mixed reviews on even fitting.

Amazon should put items by the door and not on the steps

Its a good heavy duty reducer for hvac. Im not crazy about the price but taking that out of the equation this reducer is sturdy.

Awesome product, couldn't find in stores. Worked great

Una union para reducir ductos o utilizarse en cualquier otro trabajo no puede tener esa medida. Si usted va a reducir de 6" a 4" se supone que la apertura del conector reductor en la boca de acople sea superior a 6" Usted no puede acoplar 6" exactas con 6" Eso lo sabe cualquier fabricante. Perdí el dinero. No perderé el tiempo en devolverlo. LA PIENZA NO ENTRÓ O ENCAJO EN LA SALIDA DEL EXTRACTOR. ME DUELE COMENTAR NEGATIVO EL ESFUERZO DE ALGUIEN AL VENDER ALGO. Si me entiende el vendedor y resuelve el problema ,Esta reseña la puedo modificar. Gracias.

Perfect fit for my application. Very sturdy product. Packaged good.

Fit perfectly, used it for fixing a upright air Conditioner

Could not find one in the hardware stores. Was able to find one here Amazon is great to find all that you need and don’t need It was good quality no issues

well made

It does what it's supposed to do, it's kinda hard to screw this up.

Good quality product. Fits correctly and a fraction of the cost of a big box hardware store.