Side Outlet Ceiling Diffuser Box | 12" X 12" X 6" | Galvanized Steel Metal Box is Compatible with Duct 6" Powder Coated Measure the size of the

Measure the size of the filter opening

+ Product Details Size - 18"w X 6"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 38 5/8" width X 22 5/8" height -

Actual Filter Size – 27 3/4"w x 29 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 28" duct opening (measured at the opening)

Side Outlet Ceiling Diffuser Box | 12" X 12" X 6" | Galvanized Steel Metal Box is Compatible with Duct 6" Powder Coated Measure the size of the+ Product Details Size & Compatibility The size of the side round ceiling box is 12" X 12" X 6" and it is compatible with duct 6" Premium Quality Made in the USA. Our Galvanized Duct Box is made of high quality 26 Gauge galvanized sheet metal for durability. It features a snap lock design for easy fitting and a secure connection. Applications This sheet metal register duct ceiling outlet box is used for a 90 degree connection of round pipe to a square