The Walchem EZB31D1-PE pump is now obsolete and the replacement model is the EWP-265EPE08N-USL pump. For reference, the obsolete EZB31D1-PE specifications were:
Series: EZ
Max Output: 3.2 GPH
Max Pressure: 30 PSI
Pump Head: Glass Fiber Reinforced Polypropylene
Valve Seats: EPDM
O-Rings: EPDM
Valve Balls: Ceramic
Diaphragm: PTFE (+ EPDM Backer)
Gaskets: PTFE
Tubing: ½″ OD PE (20′)
Options: Standard Manual Air Vent Valve included
Electrical: 115 VAC, 50/60 Hz
Control Module: Manual Speed Adjustment from 1–360 strokes/min
