Available to pre-order now. Current estimated dispatch: mid to end of November
Collected rainwater for everyday domestic use, with a separate drinking-water tap. This bundle combines Offgrid Rain V2.0, an Argonide NanoCeram cartridge for Filter C and FinalStage RO for drinking and cooking.
Use the RO tap for drinking and cooking: filling the kettle, cooking pasta or rice, making soup and preparing food.
Boiling is not enough. It kills germs but does not remove heavy metals or nitrates. Reverse osmosis can reduce these and other dissolved contaminants that boiling leaves behind. The reduction achieved depends on the contaminant, membrane, water conditions and maintenance.
LED UV-C is designed to inactivate bacteria, viruses and other microorganisms as water passes through.
Warranty: 2 years. If something breaks, let us know. We’ll send a replacement part where needed and get it resolved as quickly as possible.
| Offgrid Rain V2.0 | Pre-strainer, brushless pump, three 10-inch housings and cartridges, integrated LED UV-C and powder-coated aluminium wall-mounted frame. |
|---|---|
| Argonide NanoCeram | Included cartridge for Filter C, the final primary filtration stage before UV treatment. |
| Offgrid FinalStage RO | Reverse osmosis unit for a separate drinking-water outlet, with both 12V DC and mains power options included. |
Plumb Offgrid Rain V2.0 into your rainwater butt or storage tank. Its filtered supply serves domestic outlets and feeds FinalStage RO for drinking and cooking. The Rain pump and LED UV-C operate automatically only when water is being used.
See the individual Argonide NanoCeram cartridge listing for cartridge details.
| Source water | Collected rainwater from a water butt or storage tank |
|---|---|
| Primary treatment | Offgrid Rain V2.0 with pre-strainer, three 10-inch cartridges including an Argonide NanoCeram cartridge in Filter C, and integrated LED UV-C |
| Final drinking-water treatment | Included Offgrid FinalStage reverse osmosis unit |
| RO output | Approximately 1.6 litres per minute |
| Operation | Automatic, on-demand activation through flow switches in the Rain pump and LED UV-C |
| Offgrid Rain power | 12V DC and mains power; both power options included |
| FinalStage RO power | 24V unit, supplied with both 12V DC and mains power options |
| Rain frame | Powder-coated aluminium |
| Rain dimensions | approximately W65cm × H37cm × D12cm |
| Rain mounting | integrated mounting holes, 623mm apart centre to centre |
| Pump | Brushless pump with automatic flow switch |
| Filtered-water flow rate | 10–12 litres per minute, depending on setup and filter condition |
| Post-filter pressure | around 35psi (approximately 2.4 bar) |
| Filters | 3 × standard 10-inch cartridges, including 1 × Argonide NanoCeram cartridge for Filter C |
| LED UV-C | Integrated, 101 mJ/cm² with automatic flow switch; replace approximately every 5–8 years |
| Accumulator connection | Integrated optional accumulator port; accumulator not supplied |
| Included | Offgrid Rain V2.0, pre-strainer, filter cartridges including Argonide NanoCeram, and Offgrid FinalStage RO unit |
| Warranty | 2 years |
Suitable for cabins, boats, outbuildings and appropriate single-storey properties. The Rain unit has mounting holes 623mm apart centre to centre and an optional accumulator port. The accumulator itself is not supplied.
The FinalStage RO is a 24V unit supplied with both 12V DC and mains power options. Connect it to the filtered-water supply, rather than directly to untreated rainwater.
This system does not desalinate saltwater or brackish water.
Water quality varies according to the source, storage conditions, filter configuration and system maintenance. Source water should be assessed where there is any known or suspected chemical contamination.
The UV-C LED treatment stage is specified to deliver a UV dose of 101.5 mJ/cm² at rated flow and is designed to inactivate bacteria, viruses and other microorganisms as water passes through the system. The UV-C hardware is supported by supplier technical and compliance documentation, with certificates available on request.
The FinalStage RO uses drinking-water treatment components from manufacturers with products certified to NSF/ANSI 42 and 58. Certification applies to the relevant listed components, not the complete Offgrid Water system.
Warranty: 2 years.
If something breaks, let us know. We'll help identify the issue, send you a replacement part where needed and get it resolved as quickly as possible.
At Offgrid Water, we want every customer to have a working system. Happy customers are the best recommendation we can hope for.
Inside the system
Hover over a numbered point or select a feature. On a phone, tap to explore.
Hover, tap or use the feature buttons. Where labelled, concealed components are marked on their casing; they are not exposed in this view.
Rain system
Rain V2.0 included
The wall-mounted Rain unit takes water from your butt or storage tank, with a brushless pump, three cartridges and integrated LED UV-C.
Domestic output: 10–12 L/min, depending on setup and filter condition.
Drinking water
FinalStage RO included
Feed the included FinalStage RO from the filtered Rain supply for drinking and cooking.
RO output is approximately 1.6 L/min. Install the RO unit indoors.
Filter C
NanoCeram included
This bundle includes the Argonide NanoCeram cartridge for Rain Filter C.
The cartridge is inside the Rain housing and cannot be identified from this external photo.
Power
12V DC + mains options
Both units are supplied with 12V DC and mains power options. Rain runs automatically when water is drawn.
The RO unit uses its supplied power conversion equipment.
Source
Rainwater butt or tank
Plan the rainwater collection and storage as well as the treatment equipment.
This system does not desalinate saltwater or brackish water. Assess the source if chemical contamination is suspected.
