Rectangular Duct End Cap | 10" X 8" End Cap Height_10in + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 12" or 12" x 8" duct opening (measured at the opening)

no screws will be visible

Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

This 16" X 6" end cap is constructed with 26-gauge galvanized steel

Rectangular Duct End Cap | 10" X 8" End Cap Height_10in + Product Details Perfect Fit+ Product Details Size Duct end cap is 10" X 8" 26 gauge galvanized steel end cap, rectangular shape. Premium Quality Our rectangular duct cap is made of high quality galvanized sheet metal material (galvanized steel construction for durability and rust prevention). Made in the USA. Applications The product is used for stopping all types of fittings and also used to terminate a rectangular duct run in an HVAC application with a rectangular duct cap.