5504-TOICO-AES12V Diaphragm Pump

12V Variable Speed High-Pressure Pump 

The 5504-TOICO-AES12V is a premium 12V diaphragm pump engineered for smooth, high-pressure water delivery with intelligent flow control. Built on the Aquajet II platform, this pump features a variable speed motor that automatically adjusts to demand, eliminating pressure spikes and providing consistent, quiet operation.

Designed for reliability in mobile and off-grid environments, this pump delivers strong flow performance while maintaining energy efficiency and long service life. With integrated pressure control, thermal protection, and dry-run capability, it’s an ideal solution for TOICO systems and other demanding fluid transfer applications.

Key Features

• Variable Speed Technology – Automatically adjusts motor speed to match water demand
• High Pressure Output – 75–85 PSI shut-off range
• Smooth, Consistent Flow – Reduces pulsation and system wear
• Self-Priming & Dry-Run Capable
• Low Voltage Operation – Performs reliably in 12V systems
• Integrated Pressure Relief Valve – Added system protection
• Thermally Protected Controller – Auto-reset safety shutoff

Performance Specifications

• Model: 5504-TOICO-AES12V
• Voltage: 12 VDC
• Open Flow: Up to 3.40 GPM
• Max Pressure: 75–85 PSI shut-off
• Flow @ 50 PSI: ~1.00 GPM
• Max Liquid Temperature: 140°F (60°C)
• Max Inlet Pressure: 60 PSI

Motor & Control System

• Motor Type: Permanent magnet, totally enclosed
• Speed Controller: Factory set to ~6.5 amps max
• Thermal Protection: Auto-reset protection for motor and controller
• Polarity Protection: Requires correct wiring (reverse polarity can damage unit)
• Continuous Duty Capability: Designed for sustained operation within limits

Pump Design & Materials

Built for durability, chemical resistance, and long-term field use:

• Pump Type: 5-Chamber Diaphragm
• Housing: Polypropylene
• Controller Housing: Nylon
• Valves: EPDM
• Diaphragm: Santoprene
• Fasteners: Stainless Steel

Priming & Operation

• Self-Priming: Up to 10 ft vertical lift
• Smooth Pressure Control: Eliminates need for accumulator tank in many systems
• Thermal Cycling Protection: Automatically shuts down and resets if overheated

Ports & Connections

• Quick-Connect Hose Barb Options:
  • 1/2", 5/8", 3/4"
• Configurations: Straight or elbow
• Threaded Option: 1/2" male QEST available

Physical Details

• Weight: Approximately 6 lbs
• Compact design for easy integration into mobile and fixed systems

Ideal Applications

• Portable sanitation systems (TOICO core application)
• RV and mobile water systems
• Marine water pressure systems
• Off-grid and battery-powered water delivery
• Filtration and transfer systems requiring steady pressure

Recommended Accessories

• 40 mesh inlet strainer (protects pump from debris)
• Pulsation dampening hose for smoother operation and reduced vibration

Does not include fittings.