Rule Industries IL500P iL500 Plus 12V 500 GPH Inline Submersible Marine Pump

The Rule Industries IL500P iL500 Plus is a versatile, compact 12-volt centrifugal pump that operates as both a fully submersible and inline pump. Rated at 500 GPH (1,920 LPH) with a maximum pressure of 14 PSI (1 bar), this pump is built for continuous-duty marine use across a wide range of liquid-transfer applications — from freshwater and saltwater to diesel fuel.

Its slim, cylindrical profile allows it to fit through openings as narrow as 1.5 inches, making it ideal for accessing deep bilges, fuel tanks, and tight spaces. The included clip-on strainer converts the pump from submersible to inline mode in seconds via a simple snap-on/snap-off strainer at the inlet port. A 13-foot tinned-wire cable with alligator clips allows quick connection to any 12-volt power source, including a car or boat battery.

Key Features:

• Dual-mode operation: fully submersible or inline with 3/4" (19mm) hose connections at both ends
• Flow rate up to 500 GPH (1,920 LPH) with pumping head up to 32 feet
• Maximum pressure of 14 PSI — suitable for deck wash and shower applications
• Compatible with freshwater, saltwater, diesel fuel, and antifreeze
• Continuous-duty rated at 12V / 6 amps — do not run dry for extended periods
• POM (polyoxymethylene) body construction for chemical resistance and durability
• Includes 13 ft tinned-wire cable with alligator clips for fast hookup to any 12V source
• Clip-on/clip-off strainer for easy conversion between submersible and inline use
• CE marked

Specifications:

• Voltage: 12V DC
• Amp Draw: 6A
• Flow Rate: 500 GPH / 1,920 LPH (up to 31.8 L/min)
• Max Pressure: 14 PSI (1 bar)
• Max Head: 32 ft (9.7 m)
• Hose Connections: 3/4" (19mm) ID
• Body Material: POM
• Dimensions: 6.5" L x 1.5" dia. (165mm x 38mm)
• Weight: 560g (1.23 lbs)

The Rule IL500P is an ideal portable pumping solution for boaters, marine mechanics, and outdoor enthusiasts who need reliable, on-demand fluid transfer without permanent installation. Common uses include water transfer, deck showers, deck wash, bait-well aeration, diesel refueling, dinghy pump-out, and sink draining.