HVAC Duct Start Collar Take Off | 4" Sheet Metal Snap Together Start Collar is Compatible with 4" Duct w36h36 actual front end outer dimensions

actual front end outer dimensions are approximately 34 5/8" width X 32 5/8" height

It features a secure adhesive design for easy installation onto duct surfaces

+ Product Details Size & Compatibility – The 5" galvanized steel round side take-off is compatible with duct 5"

+ Product Details Size - 24"w X 6"h is the size for the duct opening measurement only

Measuring 4" in diameter for the duct opening

HVAC Duct Start Collar Take Off | 4" Sheet Metal Snap Together Start Collar is Compatible with 4" Duct w36h36 actual front end outer dimensions+ Product Details Size Sheet metal duct board take off start collar is 4" and it is compatible with duct 4". 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.