12"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 19.75"H] w8h8 + Product Details Size –

+ Product Details Size – 36"w X 34"h is the size for the duct opening measurement only

These are specially sized to fit into all drop cielings

and home improvement & remodeling specialist complete their masterpiece

Long Lasting – 2 Pack 36mm replacement blades for the HVAC Premium 36mm PVC pipe hose cutter with ratcheting system

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

12"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 19.75"H] w8h8 + Product Details Size –+ Product Details Size 12"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 19. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just