Description
actual front end outer dimensions are approximately 36 5/8" width X 16 5/8" height
+ Product Details Size – 20"w X 22"h is the size for the duct opening measurement only
Easy Unrestricted Air Flow For Your HVAC System
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Design – Removable door/face for easy filter change & cleaning - uses a 1" thick filter
10" BUTTERFLY DAMPER - For T-Bar, Drop Ceiling Grilles, (10" round duct opening) Round Damper Ring actual front end outer dimensions+ Product Details Size 10" round duct opening Heavy Gauge Steel Heavier gauge than needed, built for durability and long life in mind, but still very thin. Installation Location Ceiling. Design This airflow control component are made to connect to a drop ceiling lay in diffuser grille. Powder Coat Finish smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. + Product Description Introducing the 6" Butterfly Damper Your Solution