Oatey Roof flashing 14050 .25" ? 2" Master Flash? 4.5" x 4.5" base, for use with profiled roofing materials and can be installed on every type of roofing surface. Slides over pipe - for pitch to 45 degrees Use silicone sealant between base and surface, and secure with sheet metal screws Multi-size pipe sealing range Molds to metal, plastic, etc Non-fading EPDM collar Slides over pipe - for pitch to 45 degrees Use silicone sealant between base and surface, and secure with sheet metal screws Multi-size pipe sealing range Molds to metal, Plastic, etc Non-fading EPDM collar