SMC KT2-VEX17** Proportional Valve MSRP: Now: $58.75 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... KT2-VEX17**