ProSource 1RA1206 Air Return Grille, 13-3/4 in L, 7-3/4 in W, Rectangle, Steel, White, Powder Coated livestock-feed-supplies--07-13-26 An audio alert and green

An audio alert and green LED signals when the stud edge is reached

Includes one-hole faceplate

The identified details include 21 in

whichever is more convenient for you

Converts to single-face amber light by snapping on black back

ProSource 1RA1206 Air Return Grille, 13-3/4 in L, 7-3/4 in W, Rectangle, Steel, White, Powder Coated livestock-feed-supplies--07-13-26 An audio alert and greenAbout This Product Durable steel construction with white powder coated finish. Includes mounting screws. Highlights Made of durable power coated steel The 1 2 in spaced louvers allows efficient air flow Mounting screws included The listed sizes refer to duct opening measurement (GRILL RETURN AIR 12X6IN W 2827145 1RA1206)