12 x 12-Inch White Sidewall Return Air Grille Tile Grouts It features thermal-bonded black 1/8"

It features thermal-bonded black 1/8" graduations that are large and bold for easy reading

Turn screw to adjust pressure and fit work

and adjustable time and sensitivity settings

Includes a metal wall hanger for mounting

Quick Change Hex Shank

12 x 12-Inch White Sidewall Return Air Grille Tile Grouts It features thermal-bonded black 1/8"Ameriflow grilles, registers and diffusers offer quality material, skilled workmanship and sound engineering. For heating and air conditioning systems in residential and light commercial applications, for new constructions and remodeling. Ameriflow products are quality built with the contractor in mind.