16" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w32h32 + Product Details Size –

+ Product Details Size – 18"w X 26"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 27 3/4" x 1"

Upgrade your HVAC system with our cutting-edge 360-degree airflow grill

+ Product Details Size - 26"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 9 3/4" x 1"

16" X 12" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w32h32 + Product Details Size –+ Product Details Size 16"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 14" 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