Duct Start Collar Take Off | 16" Sheet Metal Snap Together Start Collar is Compatible with 16" Duct Material_Anodized Aluminum Installation Location – Wall or

Installation Location – Wall or door mount - door thickness up to 32mm - anodised finish - smooth & beautiful

actual front end outer dimensions are approximately 20 5/8" width X 20 5/8" height

Design – Circular return valves - designed to be used in low and medium pressure ventilation air conditioning systems

Check for air leaks in the suction line

Duct Start Collar Take Off | 16" Sheet Metal Snap Together Start Collar is Compatible with 16" Duct Material_Anodized Aluminum Installation Location – Wall or+ Product Details Size Sheet metal duct board take off start collar is 16" and it is compatible with duct 16". 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.