Gebo Unifix MiddleAbout our Unifix Middle: They are suitable for sealing holes, fractures and porous areas in water- bearing and gas-bearing pipes (Caution: outside of building for gas-bearing pipes only) with smooth surface.Sealing made of EPDM for water (drinking water) or NBR for gas (DIN DVGW) approved.Sealing band, bridge and threaded bolts of stainless steel 1.4301 (V2A) similar to AISI 304.Suitable for:Steel pipe, Copper pipe, Stainless steel pipe, Black steel pipe, Cast iron pipe, Ductile cast iron pipe, Fibre cement pipe and for temporary repairs of cold water-bearing: PE pipe and PVC pipePressure levels: Water PN 16, Gas PN 4; Temperatures: Water to 90 °C, Gas –5 to +50 °C 100mm150mm