Answer
Jan 15, 2026 - 11:49 AM
The model numbers indicate the materials used in the pump's construction:
G57C212 models use Kalrez (FFKM) for the diaphragms and Viton Extreme for the seals.
G57S212A models use Santoprene for both the diaphragms and check valves.
Both pumps feature a polypropylene housing and Hastelloy springs.
G57C212 models use Kalrez (FFKM) for the diaphragms and Viton Extreme for the seals.
G57S212A models use Santoprene for both the diaphragms and check valves.
Both pumps feature a polypropylene housing and Hastelloy springs.
