Oatey No-Calk 4 In. Aluminum Roof Pipe Flashing

Exclusive one-piece construction insures a positive leakproof installation every time. Elastometric collar allows the vent stack plenty of room for expansion and contraction. Aluminum base is made from prime .032 metal, a lightweight long-lasting flashing. Easy-to-install, the flashing slips over the vent stack and automatically adjusts to pipe size and roof angle. Remains perfectly flat on roof.