Drat dalam BSPT R3/8" ke selang air 5/16 lubang selang 8mm 8.5mm 8,5mm atau 3/8 inchi inc in dim10mm 10 mm pipe thread ulir pipa whitworth sambungan M16*1.25 ulir G3/8 kuningan brass diameter 16 16mm logam penyambung join joint nyambung water hose joints