HVAC Duct Start Collar Take Off | 8" Sheet Metal Snap Together Start Collar is Compatible with 8" Duct Floor Grille Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 31 3/4" x 1"

+ Product Details Size & Compatibilty - The 10" to 7" round metal pipe reducer & increaser 30 gauge is compatible with duct 10" to 7"

The first number in a grille size

Actual Filter Size – 33 3/4"w x 23 3/4" x 1"

HVAC Duct Start Collar Take Off | 8" Sheet Metal Snap Together Start Collar is Compatible with 8" Duct Floor Grille Actual Filter Size – 23+ Product Details Size Sheet metal duct board take off start collar is 8" and it is compatible with duct 8". 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.