Straight Register Boot - 12" X 4" X 6" Round Color_Anodized Aluminum All of these grills have

All of these grills have dampers

Design – Works for all Air Conditioning applications including Ductless Mini-Split

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 20" OR 20" x 36" duct opening (measured at the opening)

actual front end outer dimensions are 26

Straight Register Boot - 12" X 4" X 6" Round Color_Anodized Aluminum All of these grills have+ Product Details Size & Compatibility The size of galvanized sheet metal straight floor boot is 12" X 6" X 4". It is compatible with 4" duct Superior Quality Made in the USA. Our straight register boot is made of high quality galvanized steel metal for durability and rust prevention. Applications The straight boot is used for the transition from round pipe or insulated flex duct to register or grille + Product Description If you are looking for a