Description
Heavy Gauge Steel – Heavier gauge than needed
+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)
[Outer Dimensions: 20
+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow
12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter Heavy Gauge Steel – Heavier w6h6 actual front end outer MFFG410 1 Heavy Gauge Steel – Heavier gauge than needed + Product Details Perfect Fit & Easy Sizing Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)