- New
3104928.019 is a Dometic replacement return-air grille designed for select ducted RV air conditioner ceiling assemblies. Finished in polar white, it measures approximately 14 1/8 inches long by 7 5/8 inches wide. It is intended to replace the grille at the ceiling air-return opening. Confirm your existing part number and air distribution assembly compatibility before ordering. This listing refers to the grille only; other ceiling assembly components may need to be purchased separately.