Z-Flex Z-Vent 4" Termination Coupling Stainless Steel Venting (2SVSTPF04). The termination coupling is the last piece in a horizontal venting system if you want to exhaust straight out the side wall. It has a bird screen to prevent animals from getting into your exhaust system.

Z-Flex Z-Vent stainless steel vent pipe is ideal for tankless water 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.