Z-Flex Z-Vent 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. Z-Flex Z-Vent is the perfect Venting choice for the Bosch 635ES, Bosch AquaStar 250SX and Noritz N-042 Tankless Water Heaters. Zvent has Wall thimbles, vent terminators, straight vent lengths, elbows and more. We also have accessories such as drain tube kits and sealant. Will work for any other Category II, III and IV gas heating appliance too!

Features:

· Gasketed Connections: no sealant required.

· Highest Pressure Rating in the Industry: more than 3 times the standard.

· Fusion Welded Pipe Seams: provides an air-tight seam, smooth finish, better fit.

· 1 Inch Clearance to Combustibles: can be installed with minimum clearance(subject to manufacturer suggestion).

· The only metallic special gas vent pipe that can be cut to length on site.