The Walchem EWC30F1-VE pump is obsolete and was replaced by the EWC31F1-VE pump which has a new head and diaphragm design. Both the EWC30F1-VE and the EWC31F1-VE have the same specifications of 4.3 GPH, 50 PSI, digital input, PVC/CE/EPDM, 1/2" OD, 115 VAC. Many of the liquid end parts are also interchangeable between the two generations.
