30x20 White Aluminum Modern Air Return Grille with Washable Filter (Duct Opening) RFG washable pre-filter

washable pre-filter

Duct opening size: 12" × 8" (this is what you measure)

and design-forward areas where the diffuser should feel subtle and intentional

browse the 10x4 aluminum linear slot diffuser

Clean Screw-Mount Install: Pre-drilled mounting holes accept the included screws for a secure

30x20 White Aluminum Modern Air Return Grille with Washable Filter (Duct Opening) RFG washable pre-filterFITS 30" x 20" DUCT OPENING CHECK BOTH DUCT & FACE SIZE BEFORE ORDERING: This return air grille is listed 30" x 20" by duct opening size the open hole in your wall or ceiling, not the face size. Check (1) duct opening: neck size is 29 3 4" x 19 3 4", slightly smaller than the opening for easy insertion. Make sure there is enough flat surface for a flush fit. Do not order by your old covers face size alone. See our sizing photo for all dimensions.