DuraVent
DuraVent 3"-4" Inner Diameter DuraFlex AL Coupler Type B Gas Vent
DuraVent DuraFlex AL Aluminum Coupler
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.
Features
- DuraFlex AL Aluminum Coupler for PolyPro Connection: The DuraVent DuraFlex AL Aluminum Coupler is designed to connect DuraFlex AL aluminum liner lengths to PolyPro vent systems for reliable system integration.
- Designed for Combustion Air Applications: Specifically engineered for use with combustion air intake systems, providing a dependable connection solution for approved venting configurations.
- Secure Venting System Compatibility: Helps create a stable connection between DuraFlex AL and DuraVent PolyPro components, supporting efficient airflow and proper system performance.
- Optional PPS-PAC Connection Support: The PPS-PAC accessory may be used to secure the connection, providing additional installation support and connection stability.
- Durable Aluminum Construction: Manufactured with lightweight, corrosion-resistant aluminum material for dependable performance in demanding HVAC environments.
- Professional DuraVent Venting Accessory: Engineered by DuraVent, a trusted manufacturer of chimney liners, PolyPro vent systems, and HVAC venting solutions.
- Ideal for HVAC Combustion Air Systems: Provides a practical solution for high-efficiency appliance installations, combustion air routing, and professional venting applications.
Specifications
| 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 |