Planning an installation
Check the source, space and connections before you order.
Find the right setupOwn it with confidence
Support for your setup.
Find installation guidance, replacement filters and help with an existing system. Your model and a photo make it easier to identify the right next step.
What do you need help with?
Replacing filters or parts
Match replacements to the equipment and version you own.
Browse replacementsAn order or existing system
Include your order number, model and a short description of the issue.
Get supportCheck the main dimensions.
| Unit | Listed dimensions | Installation detail |
|---|---|---|
| StageOne V3.1 | W56.5 × D32 × H36.5cm | Auxiliary priming pump required above 1 metre from the waterline. Protect from frost. |
| Rain V2.0 | Approx. W65 × H37 × D12cm | Wall-mounting holes 623mm apart, centre to centre. |
| StageTwo | W35 × D15 × H35cm | Uses the pressure from your existing supply. |
| FinalStage RO | W14 × D45 × H40cm | Indoor use. Drinking-water tap requires a 23mm hole. |
Allow extra space for connections and servicing. Confirm the specifications of your exact model; earlier versions may differ.
Replacement filters.
FinalStage RO replacement filters · £120.00
The FinalStage replacement set contains the PCT pre/post carbon filter and RO membrane. The current listing recommends PCT replacement every 9–12 months and the RO membrane every 1–3 years, depending on use and source water.
StageOne, StageTwo or Rain
These systems use standard cartridge formats, but the correct combination depends on the unit and source. Send your model, water source and a photo of the current cartridges if you need help choosing.
A replacement pump
Check the voltage, pump type and system version before ordering. A replacement for an earlier system may differ from the current brushless pump. Send a photo of the label if unsure.
Make your support message useful.
- Your order number and system model.
- A short description of the problem and when it started.
- Your source water and any recent changes to the setup.
- Photos of the installation, connections and relevant labels.
For an order update, include the order number and the item you are waiting for. For a new setup, use Find my system.
Contact Offgrid Water