SEAFLO 42 Series 12V 3.0 GPM Variable-Flow Water Pump

Item #: 118493
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SEAFLO 42 Series 12V 3.0 GPM Variable-Flow Water Pump
SEAFLO 42 Series 12V 3.0 GPM Variable-Flow Water Pump
Save $5.00 (8% Off)
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  • Sat Jun 04 2022
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Maximum order quantity of 100
The SEAFLO 42 Series 3.0 GPM Variable-Flow Automatic-Demand Water Pressure Pump is a 4-chamber model capable of supplying up to 3.0 GPM. The 42 Series features Variable Flow Technology with an internal bypass feature that allows the pump to provide the amount of water you demand without cycling. No accumulator tank is necessary! The pump can be used in both fresh and saltwater applications, making it ideal for supplying water to up to 4 fixtures or using it as a raw water washdown pump. The completely rubber mounting base isolates pump vibration for very quiet operation.

The 42 Series diaphragm pump is self-priming up to 6 vertical feet and can run dry without harm. The built-in adjustable pressure switch automatically starts and stops the pump when the faucet is opened or closed. The pressure switch is factory set to 55 PSI pressure cutoff, but this setting can be adjusted up or down by the user. It comes with two 1/2" barbed fittings and one strainer. 4-year warranty.

• Capable of supplying multiple fixtures
• Internal bypass system lessens the need for an accumulator tank and prevents low-flow cycling
• Can be used for salt and freshwater
• Rubber feet to reduce vibration and noise for quiet operation
• Self-Priming Capabilities: 6 vertical feet suction lift
• Four-chamber positive displacement diaphragm pump
• Built-in check valve
• Ignition protected
• Run-dry safe
• Built-in thermal protection
• Two 1/2" barbed fittings and one strainer included
• 4-year warranty

Model: SFDP1-030-055-42
Voltage: 12V
Open Flow: 3.0 GPM
Control Type: Adjustable pressure switch factory set at 55 PSI
Max Draw: 7.5A
Valves: EPDM
Diaphragm: Santoprene
Housing Material: Nylon/Polypropylene
Inlet/Outlet Ports: 1/2"-14 MNPT
Leads: 16 AWG, 9.4" long with 2-pin connector
Weight: 4.0 lbs.
Overall Dimensions: 7.97"L x 4.92"W x 4.37"H
  • Variable Flow Technology prevents low-flow cycling
  • Ideal for supplying up to 4 fixtures
  • For use in both fresh and saltwater applications
  • Rubber mounting base for quiet operation
  • Self-priming up to 6 vertical feet
Gallons Per Minute
55.00 PSI
Unit Weight
5.13 lb
MFG Part No.
WARNING: This product can expose you to chemicals including Nickel Metallic, which is [are] known to the State of California to cause cancer. For more information, go to
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