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Johnson Pump Aqua Jet water pressure pump 12V
Key features of the Johnson Pump Aqua Jet pressure water pump
The Johnson Pump Aqua Jet pressure water pump represents reliable and quiet functionality, specially designed for small and medium-sized boats. The pump's unique five-chamber system allows for a uniform water flow throughout the system, ensuring optimal pressure in both fresh and salt water systems. The pump's compact size and durable structural design make it a practical and long-lasting solution for marine needs. The quiet operation feature makes the Johnson Pump Aqua Jet pump ideal for boating, as it reduces noise pollution and improves travel comfort. In addition, this pressure water pump is able to operate efficiently even at low speeds, ensuring a smooth water flow without interruptions in pumping. This makes the device perfectly suited for shower systems, tap water systems and other water fixtures on boats. The pump has also been designed with ease of use and reliability in mind. Equipped with a powerful motor, the Aqua Jet guarantees excellent performance in all conditions and has a built-in cut-off function that protects the pump from overpressure. These technical advantages make the Johnson Pump Aqua Jet one of the most reliable options for pressurized water systems.
Five-chamber self-priming system and its advantages
The five-chamber self-priming system used in the Johnson Pump Aqua Jet pump offers significant benefits. The self-priming mechanism ensures the pump operates quickly and efficiently, allowing the system to deliver water evenly even when there are elevation differences or other flow pressure obstacles. This makes the pump particularly useful in boat systems where the elevation differences in the water distributions can vary. The five-chamber design maximizes pumping efficiency and prevents uneven water flow. When water is used at low flow rates, the chamber design ensures that no pulsating action occurs, which promotes smooth system operation and reduces potential noise. In addition, this design increases the longevity of the pump by minimizing mechanical stress and wear. In addition to its functionality, the five-chamber system improves safety and protects the internal components of the pump. This feature makes the device maintenance-free and stable in capacity, even in less than ideal ambient conditions. This type of system is particularly well suited for freshwater and saltwater systems on boats, where consistent and reliable water pressure is absolutely essential.
Model options: WPS 2.4, WPS 2.9, WPS 4.0 and WPS 5.2
The Johnson Pump Aqua Jet pressure water pump is available in four different models, offering versatile solutions for different water application needs. The models differ in capacity, power and weight, so customers can choose the option that best suits their boat and operating environment.
- The WPS 2.4 is a compact and efficient model offering a capacity of 9 liters per minute and is designed specifically for small vessels. Its motor power is 85 W and it weighs only 1.6 kg, making it lightweight and easy to install.
- The WPS 2.9 takes the features further by offering an 11 liter flow capacity, but with cost-effective energy consumption.
- The WPS 4.0 and WPS 5.2 are suitable for larger boats or situations where the water demand is higher. For example, the WPS 5.2 offers a 20 liter per minute capacity and 150 W motor power. Although these models are slightly larger and heavier, their performance meets even the most challenging needs, such as the simultaneous use of multiple water points in the system.
Technical data for fresh and saltwater systems
Johnson Pump Aqua Jet pressure water pumps are designed to support both fresh and salt water systems, making them versatile in a variety of environments. Most models include a 2.8 bar pressure cut-off function to protect the system from overpressure situations. This increases safety and prevents excessive stress on components in marine systems. Technically, the flow capacity per model varies between 9 and 20 liters per minute, allowing the devices to be used in both smaller domestic water systems and larger water equipment combinations. Recommended fuse sizes vary from 10 amps to 15 amps depending on the model, and the weight and physical dimensions of the devices have been optimized to fit into small spaces and difficult-to-access installation locations. The material choices support reliability even in salt water use, as the pumps are designed to withstand corrosion and other challenges associated with the marine environment. This ensures that Johnson Pump Aqua Jet pressure water pumps remain operational and reliable even under the most demanding operating conditions.
Frequently Asked Questions (FAQ) about Johnson pressure water pump
- What maintenance does the Johnson Aqua Jet pressure water pump require? Johnson pumps are maintenance-free, but we recommend checking the hoses and fittings for leaks regularly and flushing the system with fresh water after using salt water.
- Do Aqua Jet models have overload protection? Yes, all models have a pressure switch (2.8 bar) that protects the pump from overpressure and keeps the system safe.
- Can the pump be used with multiple water points at the same time? Yes, especially the WPS 4.0 and WPS 5.2 models are suitable for simultaneous use of multiple water points due to their high capacity.

The best choice when you need a high-performance, high-output submersible pump that is designed to meet and exceed the strict requirements of commercial and recreational use. The pump is equipped with a 12-pole motor that is cooled by the pumped water. The motor is mounted on double ball bearings, which extends the pump's service life.
L1600 - 1600GPH
- Output at 1.0 m head (13.6V/27.2V): 98 l/min – 1550 GPH
- Output direct (13.6V/27.2V): 100 l/min – 1600 GPH
- Axle: SS2343
- Wire thickness: 16 GA
- Cable length: 1.8m
- Max. Ø: 108 mm
- Max. height: 149mm
- Weight: 1.3kg
- Current consumption: 7A
- Fuse: 10A
- Hose connections: 1"/1¼" (28/32mm)
L2200 - 2060GHP
- Output at 1.0m head (13.6V/27.2V): 120 l/min – 1900 GPH
- Output direct (13.6V/27.2V): 130 l/min – 2060 GPH
- Axle: SS2343
- Wire thickness: 16 GA
- Cable length: 1.8m
- Maximum Ø: 108mm
- Maximum height: 177mm
- Weight: 2.25kg
- Current consumption: 7.5A
- Fuse: 12A
- Hose connections: 1"/1¼" (28/32mm)
L4000 - 4000GPH
- Output at 1.0 m head (13.6V/27.2V): 164 l/min – 2600 GPH
- Output direct (13.6V/27.2V): 252 l/min – 4000 GPH
- Axle: SS2343
- Wire thickness: 14GA
- Cable length: 1.8m
- Max. Ø: 121mm
- Max. height: 216mm
- Weight: 2.45kg
- Current consumption: 7.5A
- Fuse: 25A
- Hose connections: 1½”/2" (38/50mm)
- Different capacity pumps available
- 1600GPH-4000GPH
- 98L-164L/min

The PUMProtector™ Inlet Strainer, a filter that mounts directly on the pump, protects the pump and water fixtures from debris and other particles. The filter has a transparent cover for easy inspection. The filter design and connectors make it easy to remove and service the filter.
- Screen density/Mesh: 40
- Filter housing: Polyamide 66, black
- Cover: Clear acrylic
- O-rings: Silicone and EPDM
- Mesh: Stainless steel, 40 mesh
- Max. liquid temperature: +50°C – +120°F
- Max. drinking water temperature: +30°C – +85°F
- KlickTite™ connectors: 2 x ½'' hose / ?' BSP, 2 x ¾' hose / ½' BSP
- Manufacturer's part number 09-24653-001

SPX Johnson Pump's Standard Electric WC has a combined flush and waste pump unit, which simplifies installation and makes the toilet one of the most affordable electric toilets. Water consumption 2.5 liters per flush. Hose connection is 3/4” (19 mm) inlet hose and 1” (25.8 mm) and 1 1/2” (38 mm) outlet hose. Supplied with control panel.
- 12V
- W345 x H373 x D425mm
- Inlet 19mm, outlet 25/38mm

The Comfort water toilet has a large "bowl". The reliable Johnson Pump AquaT boat toilet brings the comfort and coziness of a home-like sanitary facility to the water. A boat toilet that, according to our test, flushes as quietly as a home toilet. Easy-to-use pump with an ergonomic pump handle. The pump can be installed on the left or right side of the bowl. The new piston rod feed-through prevents unpleasant seepage at the pump handle.
- W470 x H340 x D490mm
- Intake hose: 19mm
- Outlet hose: 38mm
- Weight 11kg
- Powerful manual pump
- The pump can be installed on the left or right side of the bowl
- Large bowl

Reliable, convenient and compact, the ready-to-install Utima Bilge™ bilge pump with built-in Ultima Switch automatic switch provides years of reliable service. Rated at 12V, supplied with a straight hose connection. The pump also has a removable check valve.
600GPH
Flow rate at 3 ft (0.9 m) head (13.6V/27.2V): 32 l/min - 500 GPH
Output direct (13.6V/27.2V): 38 l/min - 600 GPH
Body: ABS Thermoplastic
Shaft seal: Lip seal
Motor shaft: Stainless steel
Wire thickness: 16 GA (1.3mm2)
Current consumption: 2.5 A
Fuse: 5 A
Hose connections: ¾”
800GPH
Body: ABS Thermoplastic
Shaft seal: Lip seal
Motor shaft: Stainless steel
Wire thickness: 16 GA (1.3mm2)
Flow rate at 3 ft (0.9 m) head (13.6V/27.2V): 38 l/min - 600 GPH
Output direct (13.6V/27.2V): 51 l/min - 800 GPH
Current consumption: 3 A
Fuse: 5 A
Hose connections: ¾”
1250GPH
Output at 3 ft (0.9 m) head (13.6V/27.2V): 51 l/min - 800GPH
Output direct (13.6V/27.2V): 79 l/min - 1250GPH
Body: ABS Thermoplastic
Shaft seal: Lip seal
Motor shaft: Stainless steel
Wire thickness: 16 GA (1.3mm2)
Current consumption: 3A
Fuse: 5A
Hose connections: 1" (approx. 28mm) and 1¼"" (approx. 32mm)
- Different capacity pumps available
- 600GPH-1250GPH
- 38L-79L/min

12 volt electric toilet Johnson Pump AquaT quiet electric compact. A quiet flushing toilet seat, developed to reduce the noise caused by conventional electric toilets and thus make life on a boat much more pleasant. The toilets are supplied with a separate silent diaphragm pump that pumps seawater for flushing. Can also be connected to the boat's existing water system. The hose connection is a 3/4” (19 mm) inlet hose and 1” (25.8 mm) and 1 1/2” (38 mm) outlet hose.
- 12 volts
- W335 x H390 D420mm
- Inlet 19mm, outlet 25/38mm
- Small bowl
- Quiet operation
- Weight: 9.6kg

The reliable Johnson Pump AquaT Manual Compact water toilet brings the comfort and convenience of a home-like sanitary facility to the water. A boat toilet that flushes as quietly as a home toilet. The toilet includes an easy-to-use pump with an ergonomic pump handle. The pump can be installed on the left or right side of the bowl. A new piston rod feedthrough prevents unpleasant seepage at the pump handle. Round seat for when installation space is limited.
- W450xD425xH345mm
- Manual toilet
- Small bowl
- Weight 8.3Kg

No moving parts, fully shielded solid-state electronics and field sensors, no environmentally harmful mercury or visible sensors. This eliminates the possibility of corrosion and etching, making the Ultima Switch™ an environmentally friendly product. The Ultima Switch starts when the liquid level is 50 mm and cuts off when the level has dropped to 20 mm. An eight-second delay prevents false starts. The Ultima Switch™ is suitable for 20 amp pumps with a voltage of 12V or 24V.

Experience worry-free boating with the Aqua Void bilge pump. Its new reinforced quick-release system makes cleaning and installation easier while being efficient. The improved motor ensures reliability and performance in all conditions. Supplied with an Ultima level switch that automatically starts the bilge pump when the water level reaches 50mm and stops it when the water level is 20mm.
The Aqua Void bilge pump is designed for practical one-handed operation and is perfect for tight spaces. The easy-to-use pump mounting system makes installation simple, and the pump motor can be quickly removed for cleaning or inspection without the need for tools. With an improved motor and high-flow vortex, the Aqua Void offers impressive efficiency and higher flow rates while maintaining efficient energy consumption.
The bilge pump is supplied complete with both straight and 90° hose connections. Aqua Void meets the strict requirements of the international standard ISO 8849 marine.
Aqua Void 500 GPH
Capacity: 600 GPH / 38 l/min
Hose connection: 19 mm
Voltage: 12V
Power consumption: 2.7 amps
Fuse: 3.5 amps
Length: 133mm
Width: 70mm
Height: 119mm
Weight: 0.32 kg
Aqua Void 800 GPH
Capacity: 795 GPH / 50 liters per minute
Hose connection: 19 mm
Voltage: 12V
Power consumption: 3.7 amps
Fuse: 5 amps
Length: 133mm
Width: 70mm
Height: 119mm
Weight: 0.36 kg
- Aqua Void 500GPH and 800GPH
- Flow rate: 38-50L/min
- Voltage: 12V
- Hose outlet 19mm
- Includes circuit breaker

Johnson-Pump Aqua Jet WPS is a five-chamber pressure water pump that ensures the most even flow possible. Built-in pressure switch. The pump is very quiet compared to traditional three- and four-chamber pressure water pumps. The pump is equipped with quick-connect fittings for easy maintenance. It is recommended to use a water filter before the pump and a pressure tank after it to ensure best performance. Connections 12.5 or 19mm.
- 13l/min
- 2,8 Bar
- 12V
- Type: WPS 3.5
- Fuse: 10A
- Lenght: 236mm
- Width: 210mm
- Height: 116mm

Johnson Pump, high-quality stainless steel water heaters offer the following features:
Efficient heating element: The heater has a 1200W electric heating element controlled by a stepless thermostat and operates on 230 volt shore power. This enables efficient heating of the water.
Connection to the engine cooling system: The accumulator has a connection to the engine cooling system, which allows heat to transfer from the engine to the accumulator, especially when the engine is running.
Stainless steel: The entire tank is made of stainless steel, with a high-gloss polished exterior. The tank's heating coil is also made of stainless steel, ensuring reliable and efficient water heating.
Radiation protection: The tank is supplied with a radiation protection, and the polyurethane foam effectively insulates the tank, preventing heat loss (> 1°C/hour).
An optional thermostat/water mixer is available to mix cold water with hot water in the tank. This reduces the risk of too hot water at the tap and helps retain heat in the tank for longer.
Connections and installation options: The tank has 1/2 inch hose connectors (hose connectors not included). The tank is designed for horizontal installation on the floor or vertical installation on a partition wall. Maximum pressure: 6.0 bar. Weight: 10 kg.
- Length: 485mm
- Diameter: 322mm
- Volume 22 liters
- With safety valve

12 volt electric toilet Johnson Pump AquaT Super Compact. The electric toilet has been developed to reduce the noise caused by conventional electric toilets and thus make life on a boat much more pleasant. Can also be connected to the boat's existing water system. The hose connection is a 3/4” (19 mm) inlet hose and 1” (25.8 mm) and 1 1/2” (38 mm) outlet hose.
- 12V
- W340 x H340 x D460mm
- Inlet hose 19mm, outlet hose 25/38mm
- Very small bowl

Experience worry-free boating with the Aqua Void bilge pump. Its new reinforced quick-release bracket makes cleaning and installation easier while being convenient and efficient. The improved motor ensures reliability and performance in all conditions.
The Aqua Void bilge pump is designed for easy one-handed removal, making it perfect for tight spaces. The easy-to-use bracket makes installation effortless, and the pump motor can be quickly removed for cleaning or inspection without the need for tools.
With an improved motor and more efficient flow impeller, the Aqua Void delivers impressive efficiency and higher flow rates while maintaining efficient energy consumption. It is designed to meet the needs of demanding users.
The bilge pump comes complete with both straight and 90° hose connections and can be easily upgraded with a circuit breaker for automatic operation. Aqua Void is a solution that simplifies your boating experience.
Johnson Pump Marine is known for its industry-leading reliability, and the Aqua Void lives up to that reputation with its robust construction and meticulous engineering. The Aqua Void meets the stringent requirements of the international standard ISO 8849 marine and is the perfect solution for a safe and worry-free boating experience.
- Aqua Void 500GPH and 800GPH
- Capacity 38-50 liters/min
- Hose connection: 19mm
- Voltage: 12V
- Power consumption: 2.7-3.7 Amp
- Fuse: 3.5-3.7 Amp
- Length 133mm
- Width 70mm
- Height 119mm

When the pump starts, it quickly builds up pressure to 2.8 bar (41 psi). At this pressure, it automatically switches off thanks to the built-in pressure monitoring (pressure switch). The pump's check valves ensure that the pressure is maintained even if the pump switches off. When the tap is opened, the pressure drops and the pump automatically switches on again.
The pump is self-priming and can withstand dry running without damage. It is recommended to use a water filter before the pump and an accumulation tank afterwards for best performance and efficiency.
Specifications:
- Voltage: 24V
- Flow: 20 L/min (5.2 GPM)
- Maximum pressure: 2.8 bar (41 psi)
- Hose connections: 12.5 mm or 19 mm (1/2" or 3/4")
- Suction height: 2m
- Maximum liquid temperature: +50°C
- Dimensions: 240 x 214 x 110mm
- Weight: 2kg
- Recommended fuse: 8A
- Manufacturer's warranty: 3 years
NOTE! The pressure is adjusted at the factory. Adjusting the pressure switch will void the warranty.
- 20 l/min
- 2.8 Bar
- 24 Volts

- Body: ABS Thermoplastic
- Shaft seal: Lip seal
- Motor shaft: Stainless steel
- Wire thickness: 16 GA (1.3mm2)
- Height (A) 4.41"" (112 mm)
- Width (B) 3.46"" (88 mm)
- Width (C) 3.15"" (80 mm)
- Weight: 0.32 kg
- Flow rate at 3 ft (0.9 m) head (13.6V/27.2V): 60 l/min - 952 GPH
- Output direct (13.6V/27.2V): 73 l/min - 1150 GPH
- Current consumption: 3 A
- Fuse: 5 A
- Hose connections: 1 1/8”

Hand pump for AquaT™ Manual Compact and Comfort toilets, also fits most boat toilets with four mounting screws at 95 mm (3 ¾”) spacing.
Screw hole spacing (center to center of screw hole): 70x40mm

- Deck grommet installation kit


