This site contains affiliate links for which we may be compensated.
Oatey 12946 3" No-Calk Roof Flashing$8.49
Slides over pipe for pitch to 40 degrees. Non-fading, self-sealing collar. Rated 180 degrees Fahrenheit continuous heat.
Approved for Type B installations. Rustproof .032 stamped aluminum standard base. Not for hot-mopped or built-up roofs.
Do not use petroleum based products on collars.