GSW 20" White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Coolers - 22" Mounting Edge (20x20x6 Inches) - Perfect for Home Cooling, Warehouse Ventilation & Industrial Airflow Control

Product Description Product Description: GSW diffuser is made from white powder coated metal making it durable and longer lasting. For up to 20” diameter round ducts or 20” x 20” rectangle ducts. This product is designed to cover a 20” x 20” hole size. The mounting size is 22” x 22”. Perfect for restaurant and bar. There are a total of 4 adjustable air outlet/shutoff to control where the air will flow. Body dimension: 20”W x 20”L x 6”H. How to Install? A lot of people bought by mistake. Please make sure to measure your installation area before purchase. Step 1: The stainless steel diffuser comes with an 1” width edge at the end of the body. Screw holes are not pre-drilled, please drill hole on each edge. Step 2: Mount screw on each edge to the ceiling. Package Includes: 1 DF-20P White Powder Coated 4-Way Adjustable Metal Diffuser. From the Manufacturer White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, Cover Hole Size 20" x 20". - White powder coated metal - Body dimension: 20"W x 20"L x 6"H - 1" width edge at the end of the body for easy installation. See image for details. - 4-way adjustable

[Durable]- GSW diffuser is made from white powder coated metal making it durable and longer lasting.

[Mounting Size]- For up to 20” diameter round ducts or 20” x 20” rectangle ducts. This product is designed to cover a 20” x 20” hole size. The mounting size is 22” x 22”. Please measure your installation area before purchase.

[Versatile]- This white powder coated metal diffuser is for evaporative/swamp cooler which is perfect for restaurant and bar.

[Easy To Install]- The white powder coated metal diffuser comes with an 1” width edge at the end of the body for easy installation. Screw holes are not pre-drilled, please drill hole on each edge then mount the screw to the ceiling.

[Adjustable Air Outlet]- There are a total of 4 adjustable air outlet/shutoff to control where the air will flow. Body dimension 20”W x 20”L x 6”H.