12x6 White Aluminum Modern Air Return Grille with Washable Filter (Duct Opening) ACA If it is approximately 12"

If it is approximately 12" × 6"

Neck size: 5-3/4" × 5-3/4" (slightly undersized for easy insertion into the opening)

open living areas

Designed as a direct replacement for standard 12" × 8" duct openings with no structural modification required

12x6 White Aluminum Modern Air Return Grille with Washable Filter (Duct Opening) ACA If it is approximately 12"CHECK SIZE BEFORE PURCHASE: Fits a 12" 6" duct opening (measure the hole, not the old cover). Please check the Sizing Guide below for overall dimensions. Drop in return air replacement for any 12" 6" duct opening no remodeling required. Washable mesh pre filter included helps catch dust, pet hair, and debris before they enter the return duct. Solid alloy aluminum frame rust resistant, dent resistant, and zero plastic parts. Wall and ceiling compatible