True portability – The gasoline rainman watermaker utilizes an onboard honda GXH 50 engine to mechanically drive the internal pumping components. 1/4 gallon of gasoline will operate the system for over an hour – enabling the production of up to 37 GPH of freshwater when paired with the Rainman Watermaker high output case. Gasoline Systems are capable of up to 37 GPH
Starting at $5341
ORDER YOUR RAINMAN SYSTEM
TWO COMPONENTS – ONE SYSTEM
The Rainman Watermaker consists of two components. The Pressure Supply Unit and a the Reverse Osmosis Membranes. Both are required to make a complete Rainman Watermaker desalination system.
GASOLINE
PRESSURE SUPPLY UNIT (PSU)
This system required no external power source, so long as you have fuel. It is ideal if you don’t have a generator and need to conserve your battery bank. Not relying on external power gives maximum flexibility for taking it ashore, loaning it out, or using it in emergency situations.
MEMBRANE OPTIONS

HIGH OUTPUT
The high output membrane is the flagship model – designed specifically for the Rainman Electric Pressure Supply Units. With the High Output Case, you can expect to produce between 26 – 37 GPH. This is our most popular and highest output option.

COMPACT
An ideal companion for the electric PSU if you are short on space, and do not require the higher output that the High Output membrane provides. This compact case, together with the Rainman Electric PSU is capable of producing between 13 – 18 Gallons Per Hour.

ECONOMY
The most economical companion to the Electric PSU. With the Economy Membrane, you can expect production rates between 13 – 18 Gallons Per Hour*. This is also the only membrane compatible with the 12V DC Rainman system (*7-9 GPH at 12V)
INCLUDED
Complimentary Supply Kit
Your Rainman Watermaker will be delivered with a complimentary supply kit of consumables to cover your first few months of use, nothing more required, everything is included.
All consumables are non proprietary, so you will be able to get stock locally, even without a dealer!