StageTwo
£195.00
Additional cartridge filtration after an existing pump or accumulator. It uses existing water pressure and needs no electrical supply.
Explore StageTwoMains & existing tank supplies
A dedicated drinking-water tap.
FinalStage RO adds reverse osmosis and remineralisation after appropriate pre-filtration. Start here if you already have a water supply and want to improve the water at your drinking tap.
£450.00View current dispatch on the product page
1.6 L/minListed RO output
Compact footprintW14 × D45 × H40cm
Dedicated tapSupplied with the RO unit
What is feeding your tank or tap?
Mains water →Tell us about the existing supply and pre-filtration, then check space, power and the tap location.Stored tank water →Tell us where the water came from, how it is stored and which filters and pump you already have.
A tank describes storage, not the original water source. Untreated canal, river, rain or private-supply water may need treatment before the drinking-water stage.
Understand the different jobs.
FinalStage RO
£450.00
A separate drinking-water unit with reverse osmosis, remineralisation and its own tap. Suitable pre-filtration is required.
Explore FinalStage ROStageTwo and RO perform different jobs. If you are unsure which parts your current installation needs, send us its details before buying.
Plan the installation.
01Check the feed
Confirm the original water source, existing pre-filtration and available pressure.
02Check the space
Fit the RO unit indoors, with room for its connections and filter replacement.
03Plan the tap & drain
The included tap needs a 23mm hole. Plan the RO reject-water connection as part of the installation and follow the unit instructions.
Questions about drinking-water upgrades.
Does the RO unit feed every tap?
The listed RO unit supplies its own drinking-water tap at 1.6 L/min. Domestic outlets and drinking-water demand are separate parts of the design.
Can I buy replacement filters?
Yes. The FinalStage replacement set includes the PCT filter and RO membrane. Check the model and recommended replacement guidance for your unit.
I can't fit RO under the sink. What next?
An adjacent cupboard or another suitable indoor space can work. Simple push-fit fittings and tubing bring the supply to the unit, then take the drinking-water outlet to the tap. Plan access, the tubing route and the required waste-water connection.
Keep the equipment you already have in the picture.
A photo of your tank, pump and filters helps us understand what an upgrade needs to work with.
Ask about an upgrade