Z-Flex Venting Accessories - 1TLXXXX0320 3" x 20 ft Roll Intake Vent Hose - For AquaStar 2400E Models
3" x 20 ft Roll Flexible Intake Vent Hose (1TLXXXX0320) for the Bosch AquaStar 2400E / Bosch AquaStar 250SX / Bosch 635ES tankless water heater.
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.