Stick-on Collar Duct | Galvanized Steel Metal Collar Duct 30-Gauge | 18" is Compatible with 18" Width_26in + Product Details Size -

+ Product Details Size - 20"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height -

+Product Description Introducing our 1/2" Non-Insulated Copper Coil Line

a starting collar is installed for attaching a straight or split fitting for the ducts

providing efficient performance of up to 300m3/h

Stick-on Collar Duct | Galvanized Steel Metal Collar Duct 30-Gauge | 18" is Compatible with 18" Width_26in + 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