The Walchem EJ-B11VCURA pump is now obsolete and the replacement model is the EWP-035BVC07A-USL pump. For reference, the obsolete EJ-B11VCURA specifications were:
Series: EJ
Max Output: 0.4 GPH
Max Pressure: 150 PSI
Pump Head: PVC
Valve Seats: FKM
O-Rings: FKM
Valve Balls: Ceramic
Diaphragm: PTFE (+ EPDM Backer)
Gaskets: PTFE
Tubing: ⅜″ OD PE
Options: with Auto Degassing Valve
Electrical: 115 VAC US Plug
Control Module: Manual Digital Speed Control, External Pulse & Stop/Start Inputs