This Reducer/Increaser is designed to reduce or increase by 4, 5, or 6 inches. You can use it to connect two different ducts to a ventilator or vice versa. It has a galvanized steel coating that makes it rust-free and ensures long life.
Reducer/Increaser can be used with hydroponics, kitchens, tumble dryers, inline ventilators, etc. It forms an airtight seal when used with duct clamps or duct tapes.
SKU/ Model: DL-402064
Brand: DL Wholesale
Material: Galvanized steel
Size: 4 to 6 inch
I had to upgrade my fans and did not have time to run larger duct. When I run my larger duct I will use to hook my small carbon filter to the larger duct. My filter is still good an I want to get all I can out of it.
Good price and great product.