SEAFLO 55 Series 115V AC Automatic Demand Diaphragm Pump – 5.0 GPM, 60 PSI, 5-Chamber Self-Priming Water Pump w/Power Plug for Outlet, RV, Marine & Off-Grid Water Systems, 4-Year Warranty

[ SPECIFICATIONS ]: Model: SFDPA1-050-060-55 | Voltage: 115V AC | Open Flow: 5.0 GPM (18.9 LPM) | Shut-off Pressure: 60 PSI | Max Draw: 2.56A | Self-Priming: 6 ft (1.8 m) | Ports: 1/2"-14 MNPT | Max Temp: 140°F (60°C) | Weight: 6.08 lbs | Warranty: 4 Years

[ HEAVY-DUTY HIGH-FLOW PERFORMANCE ]: 5-chamber diaphragm delivers 5.0 GPM for powerful water pressure to multiple fixtures with reduced cycling, ideal for larger RV and marine freshwater distribution systems.

[ INTERNAL BYPASS FOR STEADY PRESSURE ]: Integrated bypass technology prevents rapid pump cycling and stabilizes outlet pressure for smoother flow when faucets or showers are partially open.

[ TESTED FOR RV POTABLE WATER SYSTEMS ]: Tested to NSF/ANSI/CAN 61 & 372 for potable water safety and evaluated to NSF 24 and UL 778 performance standards for motor-operated water pumps. Designed for safe use in RV, marine, and off-grid pressurized water systems.

[ RUN-DRY SAFE + SELF-PRIMING FLEXIBILITY ]: Self-primes up to 6 ft and tolerates temporary dry-running without internal damage, allowing installation above fresh water tanks and safer operation.

[ ULTRA-QUIET, LOW-VIBRATION OPERATION ]: Reinforced motor housing and upgraded rubber isolation reduce noise during extended use, keeping onboard cabins quiet and comfortable.

[ BUILT FOR DURABILITY IN TOUGH CONDITIONS ]: Corrosion-resistant materials withstand saltwater exposure, while improved heat dissipation increases motor life in continuous or high-demand applications.

[ SUPPORTS UP TO FOUR FIXTURES AT ONCE ]: Designed to supply steady water flow for sinks, showers, toilets, and spray guns simultaneously without compromising pressure performance.

[ SMART ON-DEMAND PRESSURE SWITCH ]: Automatically activates when water is used and stops when the system reaches pressure, saving energy and extending pump and switch lifespan.

The SEAFLO 55 Series Automatic Demand Diaphragm Pump is a heavy-duty, high-volume pressure pump engineered for continuous freshwater supply in RV, marine, and residential systems. Its advanced 5-chamber diaphragm delivers stronger flow, smoother pressure, and reduced cycling while maintaining low noise and vibration levels. Designed with a built-in internal bypass and a precise demand pressure switch, this pump ensures consistent flow to up to four fixtures simultaneously. Self-priming up to 6 ft and fully run-dry capable, the 55 Series thrives in demanding environments where reliability matters. NSF-compliant materials ensure safe connections for potable water systems. With rugged heat dissipation, corrosion-resistant components, and a 4-Year Warranty, it’s built to perform in harsh marine or off-grid use where dependable pressure is essential.