Long-lasting, safe, secure joints without the need for flames or flux on site. Suitable for drinking water, hot & cold water, and central heating. WRAS, DVGW & KIWA Approved. Use with copper or plastic pipe. Tamper resistant, but demountable. Suitable for copper tube to EN 1057:1996. Also suitable for PE-X & PB pipe, with appropriate pipe liner. Maximum working pressure 16bar.