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9% Pure Copper meeting ASTM B280 standards
+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 20" duct opening (measured at the opening)
High Quality – Polished pre-finish gloss varnish ready to install - can also be sanded and re-finished according to application needs
+ Product Details Size – 24" x 24" with 6" collar T-Bar drop ceiling perforated return grill - metal back casing
10" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w28h28 9% Pure Copper meeting ASTM+ Product Details Size 10"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 10" height. High Quality High quality steel construction, no scuff powder coat durable finish, smooth, shiny, scratch resistant, no sharp edges, 2 recessed screw holes on each side with screws included, screws same color as vent cover, easy installation. Adjustable airflow control Adjustable airflow