The Walchem EZB30D1-FC pump is now obsolete and has been replaced by the EZB31D1-FC pump which has a new head and diaphragm design. Both the EZB30D1-FC and the EZB31D1-FC have the same specifications of 3.2 GPH, 30 PSI, on/off/speed control, 115 VAC , PVDF/CE/PCTFE/PTFE, 1/2" od. Many of the liquid end parts are also interchangeable between the two generations.
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