Groco Parallelagon Pumps Sets

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Product Description



Big yachts demand big performance and require on-line back-up for all systems, plus the versatility to provide the conveniences of home, whether they are underway or at berth. PARALLELAGON answers the call with the first parallel pumps system, complete with a solid-state control system and patented NOFLO dry run protection.

Depending on the voltage present, either an AC pump or a DC pump provides uninterrupted operation, without actuating valves, switches or circuit breakers, and regardless of the available voltage. If AC power is present, the AC pump operates; if AC power is not present, the DC pump operates. The system control determines which voltage is present, and which pump to operate.



  • Complies with NSF-61 low-lead standard.
  • One “ignition protected” pressure control operates both pumps.
  • Patented NOFLO™ dry-run protection system protects both pumps.
  • Simplified plumbing - one inlet and one outlet connects PARALLELAGON to the vessel water system.
  • Inlet strainer and oil-filled pressure gauge are included.
  • Available with any combination of: DC 12V, 24V AC 115V, 230V, 50 Hz or 60 Hz 
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