HVAC Duct Start Collar Take Off | 14" Sheet Metal Snap Together Start Collar is Compatible with 14" Duct Oval to Round 90-Degree Boot + Product Details Size -

+ Product Details Size - 28"w X 32"h is the size for the duct opening measurement only

+ Product Details Size - 25"w X 20"h is the size for the duct opening measurement only

75" width X 7

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HVAC Duct Start Collar Take Off | 14" Sheet Metal Snap Together Start Collar is Compatible with 14" Duct Oval to Round 90-Degree Boot + Product Details Size -+ Product Details Size Sheet metal duct board take off start collar is 14" and it is compatible with duct 14". Premium Quality Our products are made of high quality galvanized sheet metal with crimped ends (snap lock design) for easy fitting and secure connection. Made in the USA. Applications The snap collar duct board fitting is used as a main duct or plenum; a starting collar is installed for attaching a straight or split fitting for the ducts.