At a main duct or plenum, a starting collar is installed for attaching a straight or split fitting for the ducts. Installing a collar is the first step when installing the system of ducts.
- Long lasting performance
- Durable material
- Easy to fit
At a main duct or plenum, a starting collar is installed for attaching a straight or split fitting for the ducts. Installing a collar is the first step when installing the system of ducts.