Oatey 14052 Retro Master 0.25"-5.75" Pipe Diameter Roof Flashing 8" x 8" Base, Black Product Description Oatey? Master Flash? Roof Flashings are designed for use with profiled roofing materials and can be installed on every type of roofing surface. The base is designed to form a seal on any panel configuration and roof pitch, regardless of pipe location. Master Flash is pliable so it won't crack or break. It accommodates vibration, pipe movement caused by expansion and contraction, and snow-load movemnet. Master flash is made of EPDM and compounded specifically for maximum resistance to weathering due to ozone and ultraviolet light. From the Manufacturer 1/4-Inch - 4-Inch Master Flash Universal Roof Flashing 14052 Features 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 Universal roof flashing Slides over pipe for pitch to 45 Degree Multi-size pipe sealing range Molds to metals, plastic and more Non-fading EPDM collar Approved for Type B installations. Non-fading sealing collar. Not for hot-mopped or built-up roofs. Continuous Temperature Resistance to 212 Degree F. Intermittent Temperature Resistance to 275 Degree F. Size .25 - 4 in USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.