Z-Flex Information Center .. Click on the Z-Flex Manufacturer Page to view documentation for the entire catalog of Z-Flex Venting & Chimney Liners.
All items include a Complete Manufacturer’s Warranty This listing is for the:
2ZVB04 Universal Appliance Adapter
Z-VENT™ AL-294C® Special Gas Vent Adapters
Universal Appliance Adapter With Back-Flow Preventer
Z-Flex Detail
This Universal Appliance Adaptor with Back-Flow Preventer has seals on both ends (female on both ends) and has a back-flow preventer built in. The back-flow preventer is useful in colder climates to prevent cold air from flowing back into your heat exchanger where it could cause damage. Our Z-Flex Z-Vent venting is rated AL29-4C. Z-Flex Z-Vent is approved for Category I (vertical only), II, III & IV applications and is designed for use with boilers, high efficiency gas and oil heaters and water heaters where cool flue gases are vented under pressure. Z-Vent contains a built-in, fail-safe gasket and locking band connection. No sealant is required.