Compare Quick view Harwil Harwil | Flow Switch, 1/2"Thd Q12DS Kit (hubble fitting & 1/2"Cplr) | Q12DS501.54SNO1 MSRP: Was: Now: $66.48 Harwil | Flow Switch, 1/2"Thd Q12DS Kit (hubble fitting & 1/2"Cplr) | Q12DS501.54SNO1