500MA Series Perforated Surface Mount Diffuser past 12 months Check out the All About

Check out the All About Spirals page

w/ Tool Operated Opposed Blade Damper

and 2x4 panels * Soft White

Adjustable blades oriented for 3 or 4-way air flow pattern

available with one

500MA Series Perforated Surface Mount Diffuser past 12 months Check out the All AboutStandard Features Adjustable modular cores with fixed curved blades Extruded aluminum surface mount frame with signature line marks Hinged perforated face with screwdriver access to release 3 16 holes on 1 4 staggered centers Square Collar Countersunk mounting holes with color matching Philips posi drive screws Ceiling opening must be 4 larger in length and width than the nominal duct size Rust resistant pre coat with durable powder finish Soft White