M&G Duravent 3GV12R Round Gas B-Vent Rigid Pipe, 3 x 12

The Simpson Dura-Vent Type B gas vent system features a twist lock connection which offers a superior positive-lock that is fast and easy to assemble. When necessary. the system may be disconnected without damage to the product.

Highlights:

• Size: 3 x 12
• For approved gas appliance
• OD is 5/8 larger than ID
• Aluminum inner wall. galvanized outer wall
• Boxed