Z-Flex Venting Accessories - Water Heater Accessories - 2SVSLSF04 4" Top Support / Storm Collar - For AquaStar 125FX models
4" Top Support / Storm Collar Z-Flex Z-Vent Stainless Steel Venting (2SVSLSF04) for tankless water heaters. Used for vertical (through the roof) venting to make a weather seal with the adjustable roof flashing.
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.