Step Down Diffuser with Slide-in Damper 425-20X20 Commercial Standard Features * 1/2" x

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with

One-piece removable slide damper for off-season closure

Smoke Test and More Information on MA Series Diffusers

Designer Color or Satin Anodized Finish available on this product

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square Collar

Step Down Diffuser with Slide-in Damper 425-20X20 Commercial Standard Features * 1/2" xStandard Features * Steel galvaneal construction * For evaporative coolers or central blower systems * Modern step down design * 4 way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * One piece removable slide damper for off season closure * Soft White