SMC VEX3701-105GS-B Power Valve MSRP: Now: $426.80 Was: power valve series vex includes a regulator valve (vex1*0), precision regulator (vex1*3), 3 position valve (vex3) and a economy valve (vex5). the 3 port large capacity poppet exhausting regulator is... VEX3701-105GS-B