12" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling 8" Diameter The integrated eight-tumbler lock system 4 X 12 Is CRFG2028 Width_14in

The integrated eight-tumbler lock system

Design – Unrestricted airflow For Your HVAC system - noise free components - no vibrating louvers etc

+ Product Description Upgrade your HVAC system with our 6" Round Air Vent Supply Grille

Crafted for durability and rust-resistance

+ Product Details Size – 25"w X 34"h is the size for the duct opening measurement only

12" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling 8" Diameter The integrated eight tumbler lock system 4 X 12 Is CRFG2028 Width_14in The integrated eight tumbler lock system Design – Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc