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4" Wall Support Z-Flex Z-Vent stainless steel venting (2SVSWS04) for tankless water heaters is used to provide support to the vent system while maintaining proper clearance to combustible materials.
Vertical supports are required after any 10 foot run. These vent supports may also be used to support long horizontal runs, which require support every 6 feet.
4" stainless steel venting for Category III Gas Appliances is the perfect venting option for the Bosch Aquastar 240FX, Aquastar 125FX, Takagi TK1, TK2, TKD20, TKJR, TK1S, TM1 Tankless Water Heaters. 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.
Manuals
Z-Flex Z-Vent Installation and Maintenance Instructions>>
Z-Flex Z-Vent Technical and Dimensional Data>>
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