Free Flo - Architectural Linear Slot Diffusers

Linear Slot Diffuser mud in linear slot diffuser Linear slot diffusers Foam gasket is sealed around the back of the frame as option to avoid air leakage Suitable for installation for ceiling and sills mudah 4d slot 18 mud in Linear Slot Diffuser in white with a generous grooved pattern to provide ease of concealing with drywall filler

1121 slot I don't get why linear diffusers aren't more common I've done only one house with linear mud-in supply and return in master bedroom