Perforated T-Bar 105PD-10 Step Down Ceiling Diffuser Standard collar diameter is the

Standard collar diameter is the same as the diffuser size

Available in 6”–12” collar sizes

Hand operated lever for easy filter access

Standard Features * Lightweight Aluminum vent louver * This is a larger version of the 4901 series * Flush face * Spring clip mounting * Able to withstand wet and corrosive environments * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS - Insect screen * Standard Color or Designer Color Finish available on this product

Adjustable steel curved blades

Perforated T-Bar 105PD-10 Step Down Ceiling Diffuser Standard collar diameter is theStandard Features * T Bar lay in panel with perforated face * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar attached to panel * Soft White Options * 105 P D multi shutter damper with hinged perforated face * 105 P O opposed blade damper with hinged perforated face * TVB Thermal Vapor Blanket * Square collar