20" X 10" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White w26h26 Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 27 3/4" x 1"

Say goodbye to vibrating louvers - this grille ensures a quiet

+ Product Details Size - 30"w X 16"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 12" duct openings

For 14" Round Duct Opening - Spiral or Flex

20" X 10" 2-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White w26h26 Actual Filter Size – 33+ Product Details Outer dimensions: 21. 75"W x 11. 75"H fits a 20" X 10" duct opening Durable stamped steel construction ensures long lasting performance Designed for sidewall and ceiling installation with included screws Multi shutter damper with easy lever for precise airflow control Smooth powder coated white finish for a sleek look and scratch resistance + Product Description Maximize your homes airflow with this premium Air Supply Grille air