Z-Flex Z-Vent 3" Universal Adaptor: Modine, Nordyne, QuietSide (2SVSNA03.5)

Z-Flex Z-Vent 3" Universal Adaptor: Modine, Nordyne, QuietSide (2SVSNA03.5). This 3" Universal Adaptor has seals on both ends (female on both ends). The 3" universal adaptor connects the tankless water heater to the 3" Z-Flex Z-Vent Stainless Steel Venting. Z-Flex Z-Vent stainless steel vent pipe is ideal for the Bosch Therm 940ES / Bosch Therm 830ES / Bosch AquaStar 2700ES / Bosch AquaStar 2400ES / Bosch Evolution 500 tankless water heaters as well as the legacy Bosch Pro 715ES / Bosch Pro 635ES / Bosch AquaStar 2400E / Bosch AquaStar 250SX heaters. Z-Flex Z-Vent is rated AL29-4C and 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.