Stock Limited – please allow approximately 1–2 weeks for delivery.
The StageOne V2 + StageTwo bundle is designed to transform water from canals, rivers, lakes or storage tanks into clean, safe domestic-use water, and then further refine it towards drinking-water quality. This combination is ideal for narrowboats, barges, river boats, cabins, RVs and off-grid homes.
If you require full drinking-water capability, we also offer the StageOne + StageTwo + FinalStage RO bundle separately.
StageOne V2 – Primary Filtration with Integrated Pump
The Offgrid StageOne is engineered for demanding off-grid environments. Using a seven-stage filtration process combined with LED UV-C sterilisation, it effectively removes sediments, contaminants, microorganisms and odours from canal, river, lake or rainwater sources.
The unit is plug-and-play and includes an integrated pump, meaning you can begin filtering within minutes of opening the box. The output water is suitable for washing, showering, cleaning and general domestic use, or it can be fed into the StageTwo unit for further purification.
Note: StageOne does not filter salt or brackish water.
StageOne Specification
Source water: Canal, river, lake, rainwater, tank water
Power: 200W (12V or 230V adapters supplied)
Dimensions: W64cm × D31cm × H40cm
Weight: 14kg (dry) / 19kg (wet)
Weatherproofing: Rain and cold resistant (protect from frost)
Flow rate: 10–12 L/min (depending on setup)
Pump: 70psi max (adjustable)
Filters: 6 × 10" × 2.5" cartridges (varies by configuration)
LED UV-C: 101.5mJ/cm²
Filter life: approx. 1,500–2,000 litres
Running costs: £50–£90 per year (depending on source water)
Included: Hoses, clips, primary strainer, filters and fittings
The StageTwo unit is installed after your onboard pump or accumulator and is designed to refine pre-filtered water even further. It uses ultrafiltration, de-ionisation and carbon polishing to remove remaining contaminants, tastes, odours and microorganisms.
This results in exceptionally clean water that is suitable for cooking, brushing teeth, food preparation and high-quality domestic use. For full drinking-water capability, StageTwo can feed directly into the FinalStage RO unit.
StageTwo Specification
Source water: StageOne-purified water, stagnant tank water or mains
Power use: 0W
Dimensions: W35cm × D15cm × H35cm
Weight: 4kg (dry) / 7kg (wet)
Weatherproofing: Indoor or outdoor (avoid direct sunlight)
Flow rate: Up to 16 L/min
Filters: 3 × 10" × 2.5" cartridges
Filter life: 4–8 months
Running costs: £30–£40 per year
Warranty: 2 years
Bundle Variants
Canals and Rivers
Includes filter configurations optimised for high-sediment canal and river water and long-term liveaboard use.
Campers and RVs
Includes filters tailored for varied water sources and greater flexibility for overland or mobile use.
Why Choose This Bundle?
Complete two-stage purification for off-grid living
Integrated pump for easy tank filling
Fast installation with all parts included
High flow rates suitable for everyday domestic use