8" X 4" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - Black w12h12 Upgrade your HVAC system with

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

+ Product Details Size - 20"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 8"h is the size for the duct opening measurement only

Its flush design ensures durability while the dual directional airflow guarantees balanced distribution

Use appropriate fittings and avoid using excessive force when tightening connections

8" X 4" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - Black w12h12 Upgrade your HVAC system with+ Product Details Size 8"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 875" width X 6" 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