Airtec by Rectorseal, plastic air vents, air returns, and plastic air grilles made by Rectorseal. Airtec HVAC Products
A plastic ceiling diffuser with an incorporated ceiling box. For residential/light commercial use & offered in 8"x 8" square, 6x6" square, & 6" and 8" round. Designed for 1-man installation only working below the ceiling, they offer convenience & speed.