25 in. x 14 in. High Return Air Filter Grille with MERV 11 Filter Pre-Installed

For use as return air grille in heating cooling and ventilating applications. Installed on sidewall or ceiling. Accepts 1 in. nominal thick filter. The white color coordinates with most backgrounds and can be easily painted over.e/o High Return Air Filter Grille with MERV PreInstalled.
featuring a curved design to help redirect air flow from your central forced air systems this model is adjustable from 10 to 14 in. And can be.
thd sku# 146285.