18" X 18" 4-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10" Diameter 75" Height

75" Height

Whilst the maximum pressure for R410 is 700 PSI

These Supply Diffusers with integral round necks are recommended for heating

Ring Base Design – Allows for easy installation without removing the thermostat

actual front end outer dimensions are approximately 12 5/8" width X 38 5/8" height

18" X 18" 4-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White 10" Diameter 75" Height+ Product Details Outer dimensions: 19. 75"W x 19. 75"H fits a 18" X 18" 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