The Walchem EWC15Y1-VC pump is obsolete and was replaced by the EWC16Y1-VC pump which has a new head and diaphragm design. Both the EWC15Y1-VC and the EWC16Y1-VC have the same specifications of 1.3 GPH, 150 PSI, dig/ana input, PVC/CE/FKM, 3/8" OD, 115 VAC. Many of the liquid end parts are also interchangeable between the two generations.
