Weld fittngs 1/4″~1″ Metal seal fittings 1/4″~1″ Protection filter 1/4″~1″ Filtration Accurac:0.3、0.5μm Ball valve 1/4″~3/4″ 15A~150A Cylinder connectors CGA/JIS/CGA(DISS) Bellows valve 1/4″~3/4″ 15A~100A Diaphragm valve 1/4″~3/4″ Vacuum generator PVG Series