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3" Venting-Bosch - Vent & Accessories

Z-Flex 3" Stainless Steel Venting for Bosch 2400E, 250SX and 635ES tankless water heaters.

Water heater venting accessories including plumbing vent pipe solutions for category III appliances such as Bosch gas tankless water heaters are listed below. Not sure what venting is needed for the Bosch 2400E, 250SX/635ES. click here