36" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Color_R-4.2 Yellow + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 24" or 24" x 12" duct opening (measured at the opening)

Easy clean Healthy air flow for your HVAC system - noise free components - no vibrating louvers etc

4" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

All of these grills have dampers

3/8” - 4223 PSI

36" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Color_R-4.2 Yellow + Product Details Perfect Fit+ Product Details Size 36"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 875" width X 8" height. High Quality High quality steel construction, no scuff powder coat durable finish, smooth, shiny, scratch resistant, no sharp edges, 2 recessed screw holes on each side with screws included, screws same color as vent cover, easy installation. Adjustable airflow control Adjustable airflow