Type B Gas Vent pipe used to add length to a straight length of Type B Gas Vent. The 12 in. L pipe adds 3 in. to 10 in. L. This pipe requires a 2 in. overlap.

• Type B gas vent designed to the demands of the common category I appliance installation
• Use with natural gas and liquefied propane (LP) category I appliances with a draft hood
• Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation; an innovative system for a lock tight connection called DuraLock
• 1 in. clearance to combustibles in single and multi-family dwellings
• Available in 3 in. to 8 in. Dia
• Limited lifetime warranty
• Listed to UL 441, UL 1777, and ULC S808

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Adds 22.5 in. L to a 6 in. Dia installation
• Aluminum inner wall and galvalume outer wall construction that features an industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications