18" X 10" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Return Grille + Product Details High Quality

+ Product Details High Quality - Aluminum housing on the outside and on the inside for the best insulation value

5/8" - 2579 PSI

During summer

Actual Front End Outer Dimensions Are 16" Diameter

18" X 10" 3-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Return Grille + Product Details High Quality+ Product Details Outer dimensions: 19. 75"W x 11. 75"H fits a 18" 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