This Aluminum Steep Roof Flashing with 4 Inch Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Use to weather proof the penetration of vent pipe through the roof. Storm Collar required. Select roof flashing based on pitch of roof. For pitches of 7/12 - 12/12. Made of galvalume.
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov