GSW 16” White Powder Coated 4-Way Adjustable Air Diffuser for Evaporative Swamp Cooler, 18” Mounting Edge (16"x16"x6")

[Durable]- Diffuser is made from white powder coated metal making it durable and longer lasting. [Mounting Size]- For up to 16” diameter round ducts or 16” x 16” rectangle ducts. This product is designed to cover a 16” x 16” hole size. The mounting size is 18” x 18”. 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: 16”W x 16”L x 6”H.