18" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Copper Coil-Insulated Line Set Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

R Value Rating of Insulation - R3

+ Product Details Size - 8"w X 32"h is the size for the duct opening measurement only

18" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling Copper Coil-Insulated Line Set Actual Filter Size – 31+ Product Details Size 18"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 875" width X 18" 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