Single Wall Expandable-Flexible Gas Vent Connector (EFC) offers a simple connection between appliance and Selkirk Type B vent. UL listed and only requires 1 in. minimum airspace clearance to combustibles and has multiple applications, can be for single vent or combined vent.

Z-Vent® double fail safe self-sealing Gas Vent System dramatically reduces installed vent system cost. Vent stack/breeching designed for use with boilers, high efficiency furnaces. Venting for both spa heaters and pool heaters, unit heaters, and water heaters.

Find expert-curated Gas Vent Pipe & Fittings products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products.

Locks onto Hart & Cooley Type B gas vent. Requires only 1" clearance to combustibles per installation instructions. UL-listed for use as a connection from an appliance to Type B gas vent in conditioned spaces only. Do not enclose. Available in 3" through 5" diameters and 1' through 5' lengths. Flexible Gas Vent Connector sizes (inches)

Insul-Vent® is a double-wall insulated vent connector, designed to make insulated connections between appliance and common vent (i.e. B-Vent, masonry chimney, or Z-Flex® chimney liner products), easy and economical.

DuraFlex AL (DFAL) aluminum flexible relining for masonry chimney. Use with natural gas or liquid propane category I, draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent.

The Double-Wall Flexible Gas Vent Segment features a double wall, air-insulated construction. Available in 3" through 5" diameters and 2' through 4' lengths.

This category contains venting products manufactured by Z-Flex such as Single-Vent Single Wall Connector Kits and Single-Vent Lengths.

This category contains a variety of Z-Vent Special Gas Pipes and Fittings including elbows, tees and wall thimbles. Free shipping on orders over $99 Your Zip: 23917