The Oatey 3″- 4″ pipe flashings are made to fit both 3″ and 4″ pipes. Oatey NO-CALK Flashings are used in both residential as well as commercial applications. It is available in galvanized and pre-painted black, brown and gray. This is a self-sealing flashing, so caulking is not required. It is rated at 180°F of continuous heat and is approved for Type B installation. This product cannot be used with petroleum-based products or paint and is not for hot-mopped or built-up roofs. The Oatey flashings can be used on a pitch of 0 up to 40 degrees.