For best heating and cooling system performance change your furnace or air handler filter every 1-2 months. This is a 20"x20" Sheet Metal return air filter plenum. Made in America by hand from American made 26 Gauge Steel Galvanized Sheet Metal. There is a 3/4" hem flange on one 20"x20" end Outside the plenum (around the flange) has dimensions 21-5/8 x 21-5/8" and height 5-1/8" , and the other side is fitted with an end cap with a 18" collar. From top to bottom the plenum is 5-1/8" long and the collar measures 4" in length.There is a sliding door on the 20 side for filter access. The door can slide from ether side allowing for easy access. Standard air filter 20" x 20" x 1.
Although it normally takes a little more time and effort on our part, our products are typically rivited together. Riveting, versus spot welding, provides a more durable bond resulting in a longer lasting rigid part that will serve you for decades. We are a complete sheet metal shop. Our prices are fair, and our quality is unmatched. Please check out my other auctions.
This item is in the category "Home & Garden\Home Improvement\Heating, Cooling & Air\Heating & Cooling: Parts & Accessories\Plenums & Filter Boxes". The seller is "ydsheetmetal" and is located in this country: US.This item can be shipped to United States.