1-1/2"-3" VENT COLLAR ALUM BASE

Slides over pipe for pitch up to 40 degrees. Non-fading, non-cracking and non-rusting bases and sealing collars. Ring on collar tears off, allowing flashings to seal different pipe diameters. Rated 180 degrees Fahrenheit continuous heat. Approved for Type B installations. Base made of .032 stamped aluminum. Not for hot-mopped or built-up roofs. Do not use petroleum based products on plastic bases or rubber collars.