... main tube threaded connection, 16mm/18mm PEX-AL connection 2 way manifold brass stop valvePex pipe connectionABS switchWe are BV certificed ... aluminium handle controlled AL-PEX union connectors, 2 way, 3 way and 4 way for 16mm and 18mm AL-PEX pipe.Main Features ... or optional brass (see below)Max PN16 working pressure2 way, 3 way and 4 way distributionThread connection with BSP, NPT optionalAL-PEX union ...