Rain Drinking Water Bundle

Available to pre-order now. Estimated arrival: beginning of December 2026. Filtered rainwater for washing and showers, plus a separate, low-volume tap for drinking and cooking. The bundle includes Rain V2.0, a NanoCeram cartridge upgrade and FinalStage RO. Connect it to your existing rainwater collection tank. Rain output: 10–12 L/min at around 35psi (2.4 bar) after filtration, depending on setup and filter condition. Drinking-water output: approximately 1.6 L/min from FinalStage RO. Power: both 12V DC and mains options included for both units. Setup: compact, wall-mounted units supplied from a water butt or storage tank. Freshwater only. 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 for the system; 1 year for pumps. If something goes wrong, get in touch. We supply covered replacement parts and help you fit them. Callouts aren't included. What’s included & how it works 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 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® Filter Cartridge listing for cartridge details. Specifications 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, 50.8 mJ/cm² (supplier-reported) 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 for the system; 1 year for pumps Installation & water source 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. Treatment & documentation UV-C disinfection The UV-C LED treatment stage is designed to inactivate microorganisms in clear, pre-filtered water. The supplier reports a UV dose of 50.8 mJ/cm², based on disinfection testing. Performance depends on flow rate and water quality. NSF/ANSI certified components 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 & support Warranty: 2 years for the system; 1 year for pumps. 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.