Z-Flex Venting Accessories - 2SVSSCSF03 3" Flat Roof Flashing Z Flex Z Vent SS Venting - For AquaStar 2700ES, 2400ES, 2400E Models
3" Flat Roof Flashing Z-Flex Z-Vent Stainless Steel Venting (2SVSSCSF03) for the Bosch AquaStar 2700ES / Bosch AquaStar 2400ES / Bosch AquaStar 2400E / Bosch AquaStar 250SX / Bosch 635ES tankless water heater.
A 3" Top Support / Storm Collar (2SVSLSF03) is also needed to make a weather seal with the roof flashing.
The Bosch AquaStar 2700ES / Bosch AquaStar 2400ES / Bosch AquaStar 2400E requires 3" stainless steel venting for Category III Gas Appliances. Our Z-Flex Z-Vent venting meets these requirements and 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.