DuraVent 3"-4" Inner Diameter DuraFlex AL Coupler Type B Gas Vent
- FREE SHIPPING : All Over United States over $300
- NO SALES TAX : All USA Orders/except WI
- SPEAK TO AN EXPERT : Call 888-486-2909 or email at cs@dreamwoodliving.com
The DuraVent DuraFlex AL Aluminum Coupler is a dependable flexible chimney liner connector designed for connecting DuraFlex AL aluminum liner sections in masonry chimney relining applications. Engineered for Category I natural gas and liquid propane appliances, this coupler provides a secure connection for Type B Gas Vent systems used with gas fireplaces, furnaces, boilers, water heaters, and wall or space heating appliances. It helps maintain proper vent performance while protecting masonry chimneys from the damaging effects of flue gas condensation.
Manufactured by DuraVent, a trusted leader in chimney liners and venting solutions, the DuraFlex AL Aluminum Coupler offers lightweight durability and easy installation for residential and commercial venting projects. This high-quality gas vent accessory is ideal for chimney restoration, flexible liner replacement, and HVAC vent system installations, delivering reliable performance and long-lasting connection strength.
| Model | Size |
| 3DFA-FCP | 3" |
| 4DFA-FCP | 4" |
| Vent Type | Type B Gas Vent |
| Materials & Const. | 010” aluminum (2-ply of .005”) |
| Clearance | 0” clearance to masonry |
| Listings | Listed to UL 1777 and ULC S635 |
| Warranty | Limited Lifetime Warranty |