12" x 12" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 15" x 15"] 16" Round Duct Pipe /* Adding space between bullet

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+ Product Details Size – 5" round duct sheet metal elbow - 30 gauge galvanized - crimped end connection - adjustable from 5° - 90°

+ Product Description Introducing our 10" x 10" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

+ Product Details Size – Duct end cap is 16" X 10" | 26-gauge galvanized steel end cap

+ What Is A MERV Rating Minimum Efficiency Reporting Value (MERV) is a standard that rates the overall effectiveness of air filters

12" x 12" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 15" x 15"] 16" Round Duct Pipe /* Adding space between bullet+ Product Details Size Refers to duct opening only. The face frame extends roughly 1. 5" on each side. Do not measure the overall grille for sizing. Design All aluminum frame and back blades. Rustproof and built to last in moisture prone environments. Quiet Airflow Opposing blade damper design reduces vibration and noise for smoother air distribution. Clean Finish White powder coated surface resists chips, scratches, and discoloration over time. Easy