Oatey No-Calk 9-1/4 in. W X 13 in. L Thermoplastic Roof Flashing Black

No-caulk flashing with thermoplastic base 1-piece construction eliminates any possibility of the collar coming off. Patent pending. Patented positive double seal ensures leak-free fit around vent stack. Black color blends with modern roofing material colors and is an excellent weathering color. No-caulk collar allows plenty of room for expansion and movement of pipe. Gives with the movement of the pipe while maintaining leak-proof seal. Fits roof angles from flat to 45 degree. Will not warp or crack. Never needs caulking. Fits all types of pipe, copper, cast-iron, plastic, aluminum and galvanized. Easy-to-install, slips over the vent stack and automatically adjusts to pipe size and roof angle. Won't rust or corrode. No roof discoloration