Integral Solder Ring (ISR) capillary fittings contain a ring of high quality lead-free solder. When heat is applied, the solder is released into the gap between the tube and the fitting. Also suitable for sanitation services, compressed air lines, gas distribution systems and engineering pipeline services that convey liquids, oils, air and gases at temperatures up to 110°C. Kite marked and WRAS Approved.
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