Rectangular Duct End Cap | 30" X 12" End Cap Material_Aluminum Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 18" duct openings

actual front end outer dimensions are approximately 18 5/8" width X 32 5/8" height -

Our MERV 8 pleated filter attracts and captures air particles from 3 to 10 microns such as pollen

Our boot register angle is made of high-quality galvanized sheet metal

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 26" OR 26" x 36" duct opening (measured at the opening)

Rectangular Duct End Cap | 30" X 12" End Cap Material_Aluminum Ideal for Walls & Ceilings:+ Product Details Size Duct end cap is 30" X 12" 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.