The DEKS Multiplex Collar Perforated Flange is a versatile solution for connecting waterproof bituminous felts to through tubes or systems on roofing installations. Its shank, with a slight taper, accommodates tubes of various diameters, making installation straightforward and secure. The perforated flange supports effective gas welding with bituminous sheaths, ensuring a reliable and watertight seal. Fully compatible with APP and SBS prefabricated bituminous membranes and coats, the collar performs best when sandwiched between two layers of membrane. Constructed from elastic materials, it provides long-term watertightness and excellent resistance to sun exposure, ozone, and other environmental or chemical agents. With outstanding flexibility even in low temperatures, this collar maintains its mechanical and physical properties over time, delivering durable performance for roofing projects. Why Choose the DEKS Multiplex TPE Collar Perforated Flange? High performance collar with perforated flange Strong & durable High-quality TPE Cost-effective Easy to install Product Specifications: Diameter: Select from dropdown Material: TPE