Stick-on Collar Duct | Galvanized Steel Metal Collar Duct 30-Gauge | 18" is Compatible with 18" Return Grille T-Bar With Plenum Box + Product Details Size -

+ Product Details Size - 16"w X 36"h is the size for the duct opening measurement only

+ Product Details Heavy Duty Construction – Made with 1680D Polyester for durability and strength

+ Product Details Size – Duct end cap is 10" X 6" | 26-gauge galvanized steel end cap

+ Product Details Size – 6" X 12" is the opening (vent hole) dimension - actual size is approx

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Stick-on Collar Duct | Galvanized Steel Metal Collar Duct 30-Gauge | 18" is Compatible with 18" Return Grille T-Bar With Plenum Box + Product Details Size -+ Product Details Size Stick on collar is 18" and it is compatible with duct 18". Design It has the main role in HVAC ducting system. The stick on collar helps you in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. Applications The galvanized steel round duct is used to cut into a plenum or rectangular duct to begin a trunk line or branch like runs. Premium Quality Our duct stick on collar has made of high quality