20" X 20" 4-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Compatible With Duct 10in Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 25 3/4" x 1"

+ Product Details Size - The listed 5" diameter refers specifically to the size of the duct opening

actual front end outer dimensions are approximately 20 5/8" width X 338 5/8" height

+ Product Details Size - 16"w X 22"h is the size for the duct opening measurement only

+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior durability and reliable performance

20" X 20" 4-Way Air Supply Grille – Steel HVAC Vent Cover with Damper, Wall/Ceiling Register, White Compatible With Duct 10in Actual Filter Size – 27+ Product Details Outer dimensions: 21. 75"W x 21. 75"H fits a 20" X 20" 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