... pipe fittings, coupling, A-8608, threaded connector DN15, DN20 and DN25, BSPP threaded, ISO228 parellel thread or NPT thread. PEX ... from 16mm to 26mm. Suitable for connecting pipes in water and gas supply system Material optional: brass (HPb57-3A, HPb58 ... hose couplings, both brass forged and steel forged, copper fittings, full arange of selection and assorted models and series, please contact us for ...