Rainman watermakers, every model compared.
The default in Australian marinas. Portable, modular and framed versions of one pump platform, in AC, DC and petrol. Big output in a short window; efficiency depends entirely on which membrane pack you choose. Built in Sydney, Australia. Across the range, energy per litre runs from 9.8 to 19.7 Wh/L.
Most efficient RainmanPortable AC 140L
TechnologyConventional high-pressure pump
Australian stockists20
| System | Power | Output L/hr | Draw W | Wh per litre | Price |
|---|---|---|---|---|---|
| Portable AC 140L Rainman | AC 240V | 100–154 | 1,250 | 9.8 | $5,329 |
| Portable 48VDC 140L Rainman | 48V DC | 100–154 | 1,250 | 9.8 | $6,240 |
| Modular AC 140L Rainman | AC 240V | 100–154 | 1,250 | 9.8 | $5,460 |
| Frame AC 140L, auto Rainman | AC 240V | 100–154 | 1,250 | 9.8 | $11,168 |
| Frame AC 140L, manual Rainman | AC 240V | 100–154 | 1,250 | 9.8 | $7,685 |
| Frame 48VDC 140L, auto Rainman | 48V DC | 100–154 | 1,250 | 9.8 | $12,115 |
| Frame 48VDC 140L, manual Rainman | 48V DC | 100–154 | 1,250 | 9.8 | $8,666 |
| Modular 48VDC 140L Rainman | 48V DC | 100–140 | 1,250 | 10.4 | $6,421 |
| Portable 24VDC 55L Rainman | 24V DC | 45–61 | 600 | 11.3 | $4,898 |
| Modular 24VDC 55L Rainman | 24V DC | 45–61 | 600 | 11.3 | $5,053 |
| Frame AC 240L Torrent, auto Rainman | AC 240V | 180–264 | 2,800 | 12.6 | $15,089 |
| Frame AC 240L Torrent, manual Rainman | AC 240V | 180–264 | 2,800 | 12.6 | $12,089 |
| Portable 12VDC 34L Rainman | 12V DC | 26–37 | 400 | 12.7 | $4,898 |
| Modular 12VDC 34L Rainman | 12V DC | 26–37 | 400 | 12.7 | $5,053 |
| Frame AC 100L, auto Rainman | AC 240V | 70–110 | 1,250 | 13.9 | $12,131 |
| Frame AC 100L, manual Rainman | AC 240V | 70–110 | 1,250 | 13.9 | $8,642 |
| Portable AC 75L Rainman | AC 240V | 55–82 | 1,250 | 18.2 | $4,402 |
| Modular AC 75L Rainman | AC 240V | 55–82 | 1,250 | 18.2 | $4,522 |
| Portable AC 70L Rainman | AC 240V | 50–77 | 1,250 | 19.7 | $5,296 |
| Modular AC 70L Rainman | AC 240V | 50–77 | 1,250 | 19.7 | $5,299 |
| Portable Petrol 140L Rainman | Petrol | 100–154 | — | petrol | $6,731 |
| Portable Petrol 75L Rainman | Petrol | 55–82 | — | petrol | $5,804 |
| Portable Petrol 70L Rainman | Petrol | 50–77 | — | petrol | $6,699 |
Under 6 Wh/L · energy recovery
6–12 Wh/L
Over 12 Wh/L
Source. Manufacturer's published product pages, rainmandesal.com, checked 2026-09-05. Manufacturer's published US list, excluding freight, duty and installation. Rainman geo-serves AUD to Australian visitors, so an Australian quote will differ.
Rainman against the alternatives
Where to buy Rainman in Australia
ManufacturerNSW
Rainman Desalination
Brookvale NSW· rainmandesal.com
Dedicated watermaker manufacturer.
Rainman
VerifiedView profile →
Watermaker specialistQLD
M Water Marine & RV
Marian QLD· mwatermarineandrv.com.au
Watermaker specialist.
RainmanBlue Water DesalinationParker Sea RecoveryEco-Sistems
VerifiedView profile →
Watermaker specialistQLD
The Watermaker Man
Manly QLD· thewatermakerman.com.au
Dedicated watermaker specialist.
Rainman
VerifiedView profile →
Installer & serviceNSW
Ocean Phase Marine Electrical Solutions
Bayview NSW· oceanphasemarine.com
Marine electrician with documented Rainman installations.
Rainman
VerifiedView profile →
Authorised dealerQLD
CROFTECH Marine and Motor
Coomera QLD· croftechmarineandmotor.com
Rainman dealer and installer.
Rainman
VerifiedView profile →
Authorised dealerNSW
Local Engineering
Rosehill NSW· localengineering.au
Rainman dealer with documented installation work.
Rainman
VerifiedView profile →
Common questions
- How efficient are Rainman watermakers?
- Across the 23 models we table, Rainman runs from 9.8 to 19.7 watt-hours per litre. They use conventional high-pressure pumps, so efficiency depends mostly on how much membrane area is fitted behind the pump.
- What does a Rainman watermaker cost in Australia?
- Indicative pricing runs from $4,402 to $15,089, excluding freight, duty and installation. Australian dealer pricing is usually all-inclusive and reads higher, so treat these as a starting point and ask a stockist for a landed AUD figure.
- Who services Rainman watermakers in Australia?
- 20 verified businesses carry Rainman, including Rainman Desalination, M Water Marine & RV, The Watermaker Man. Check whether each one installs and services or only sells, because that difference matters more than the purchase price over a decade of ownership.
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