Stick-on Collar Duct | Galvanized Steel Metal Collar Duct 30-Gauge | 18" is Compatible with 18" Ceiling actual front end outer dimensions Ducting Components RG2016 FBA-HP Applications The C box

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

+ Product Details Size - 8"w X 8"h X 2"d (for duct opening measurement only)

+ Product Details Size & Compatibility – The 6" galvanized sheet metal straight transitioning duct boot is compatible with duct 6"

Contorl Lever To Adjust Louvers According To Season - Complete Open For Summer To Release The Heat

or just adding updated elements to your current home

Stick on Collar Duct Galvanized Steel Metal Collar Duct 30 Gauge 18" is Compatible with 18" Ceiling actual front end outer dimensions Ducting Components RG2016 FBA HP Applications The C box actual front end outer dimensions are approximately 32 5 8" width X 18 5 8" height + Product Details Size 8"w X 8"h X 2"d (for duct opening measurement only)