The Walchem EJ-B16VEURM pump is now obsolete and the replacement model is the EWP-075CVE07M-USL pump. For reference, the obsolete EJ-B16VEURM specifications were:
Series: EJ
Max Output: 0.8 GPH
Max Pressure: 90 PSI
Pump Head: PVC
Valve Seats: EPDM
O-Rings: EPDM
Valve Balls: Ceramic
Diaphragm: PTFE (+ EPDM Backer)
Gaskets: PTFE
Tubing: ⅜″ OD PE
Options: with Multifunction Valve
Electrical: 115 VAC US Plug
Control Module: Manual Digital Speed Control, External Pulse & Stop/Start Inputs