System Options

5500M ECD
Replacement Electronic Control Drawer (ECD)
Folded Solar Panel
Folding Solar Panel 360 Watts
Chlorinator Package
Chlorinator Option
Potable Water Bladder
Potable Water Bladder pictured with Transfer Pump Parts Package

Maintenance Parts Package (Approximately One Year of Service)

Consumables Package (Approximately One Year of Service)

Aspen 5500m

Product on GSA 5500M

The ASPEN 5500M

is a fully-enclosed expeditionary, non- saline water purification system. It supplies 4,000-5,500 gal- lons (15,142-20,820 liters) per day, approximately 170-210 gallons (644-795 liters) per hour, of highly purified water from virtually any non-saline water source. Water can be drawn from ditches, rivers, lakes or standing water that may contain chemical and/or biological contamination.


Stackable cases are 43.5”x21”x28” (110.5cm x 71.1cm x 53.3cm). Approximate dry weight of the Aspen 5500M is 170 lbs (77 kg), designed for a four-person carry. The Support Case weighs approximately 110 lbs (50 kg), for a two-person carry.

Multi-Stage Pre-filtration

Stage one (foot valve) removes larger debris before it enters into the second stage (external mesh pre-filter screen), which protects the boost pump from debris. Third, the 5 micron pleated pre-filter cartridge removes sand and dirt. The fourth stage screens very fine particulates, including harmful microorganisms such as paramecium, amoeba, Giardia, cryptosporidium and other small matter, down to 1 micron in size.

Contaminant Removal

The replaceable media canister effectively treats 40,000-50,000 gallons (151,416-189,271 liters) of surface water containing high levels of man-made pollutants such as solvents, insecticides and petro-chemicals and other contaminants such as lead, barium, and selenium. When used primarily to eliminate possible microbial contamination in clear water, the canister may be used for up to 75,000 gallons. The 5500M is most effective when the flow rate does not exceed 3.5 gallons per minute.


An ultraviolet (UV) lamp system is included. Rated at 10 gallons (38 liters) per minute), it provides as much as twice the safety factor required by US regulatory agencies and exceeds World Health Organization (WHO) standards for total disinfection. UV is much faster-acting than chlorine bleach and has been found to destroy over 99.99% of pathogens, including E. coli, cholera, typhoid, anthrax and polio.

Post Filtration

After treatment by the media canister and UV disinfection, the optional final step is post-filtration to remove tannins that may cause the water to have a brownish tint.

Power Source

Operates on single phase 90 to 260 volts AC at 50 or 60 hertz as well as 10 to 30 volts DC, virtually any power source. The maximum power consumption is less than 200 watts. Run time on a fully charged battery alone is 2 to 3 hours. Unit comes standard with a NATO 24-volt DC power cable.


The variable-speed, self-priming, low- voltage pump can draw water up to 12 feet and provides water on demand at pressures between 22- 45 pounds per square inch (PSI).

Triple Mode Display

A digital display shows the volume of water passing through the system, total run time of the filter canister, and the total run time of the UV exposure unit.

Safety Features

The operating and monitoring components are designed with dual protective shutdown circuitry. In the event of a failure during the disinfecting process, the overall system automatically shuts down. The pump will turn off and a valve will close, stopping water from passing through the system.

5500M Design Criteria