Z-Flex Venting Accessories - 7HS44XX 3" Gear Clamp - For AquaStar 2400E Models
3" Gear Clamps (7HS44XX) for the Bosch AquaStar 2400E / Bosch AquaStar 250SX / Bosch 635ES. Two gear clamps are needed for each piece of aluminum flex intake vent.
The Bosch AquaStar 2400E / Bosch AquaStar 250SX 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.