The Walchem EWB31Y1-VC pump is now obsolete and has been replaced by the EWN-B31VCUY pump which has more I/O and, therefore, offers greater flexibility. Both the EWB31Y1-VC and the EWN-B31VCUY have the same specifications of 3.3 GPH, 30 PSI, DIG/ANA INPUT, PVC/CE/FKM, 1/2" OD, 115 VAC.
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