Product Description All-Flash No-Calk Roof Flashing, 11 in Width, 14-1/2 in Length, Aluminum, 180 deg F, IAPMO Listed, Used with 1-1/2 - 3 in Pipe Diameter. Non-fading, non-cracking and non-rusting. Ring on collar easily tears off. BASE made of .032 stamped aluminum. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry