American Metal Products Type B Gas Vent 4in. Diameter x 36in. Round Pipe Length

This 4 in. x 3 ft. B Vent Pipe is made of galvanized steel for durability. The pipe is designed for use with 4 in. steel pipes in your heating, ventilation and air conditioning (HVAC) system. Pioneer in the development and simplification of effective venting products. Amerivent components are crafted for today's building and appliance requirements.

• Galvanized outer with aluminum inner for corrosion-resistance
• Snap-Lock coupling system for quick and easy installation
• Amerivent Type B for Category 1 gas appliances with draft hoods