Zip Flange
Single Wall and Double Wall
A simple “butt” type connection for round and oval which is gasketed and screwed together.

Download the ZIP Flange Brochure
Benefits of ZIP FLANGE:
- 16 gauge one-piece construction ready to install immediately
- Zip flanges are shipped split, enabling an absolute tight fit for any spiral variations
- Acts as a reinforcement and comes with rolled edge for strength and safety
- Available in sizes from 10" to 80" round and oval with minor axis of 10" to 36"
