The Walchem EWB30F1-VE pump is obsolete and was replaced by the EWN-B31VEUR pump which has a new head and diaphragm design and more I/O and, therefore, offers greater flexibility. Both the EWB30F1-VE and the EWN-B31VEUR have the same specifications of 3.3 GPH, 30 PSI, digital input, PVC/CE/EPDM, 1/2" OD, 115 VAC.
