6-Stage Reverse Osmosis Replacement Filter Set

A complete refresh for a six stage under sink reverse osmosis system. All six cartridges are in the box, from the sediment prefilter through a genuine Ecosoft 50 GPD membrane to the mineraliser that puts calcium and magnesium back into the water. Fits any system built around standard 10″ x 2.5″ housings, with a choice of stage 3 to suit your water. Stocked in Ireland. What is in the set Ecosoft PP5 sediment filter. A 5 micron polypropylene cartridge that takes out sand, silt, rust and scale particles and shields everything after it Ecosoft CTO carbon block. Reduces chlorine, trihalomethanes, heavy metals and organic compounds. This one matters as much for the membrane as for you, because chlorine degrades membranes and the carbon block is what keeps stage 4 alive Your choice. A 1 micron sediment filter for finer particle removal, or granular activated carbon for extra chlorine, odour and taste polishing Ecosoft 50 GPD RO membrane. The heart of the system, rejecting up to 99% of dissolved contaminants including fluoride, lead, PFAS, nitrates and dissolved salts Ecosoft coconut carbon post filter. Fitted after the tank, refining taste and odour Mineraliser. The final stage, putting calcium and magnesium back and nudging the pH toward neutral for a rounder, more natural taste Cartridges in set 6, membrane included Cartridge size 10″ x 2.5″ standard Membrane Genuine Ecosoft 50 GPD Final stage Mineraliser Prefilter life 6 to 12 months Membrane life 2 to 3 years typical What the mineraliser does Reverse osmosis removes the naturally dissolved minerals along with the contaminants, which is why plain RO water can taste flat or slightly sharp, and it sits marginally on the acidic side of neutral. The mineraliser corrects both. The difference is taste and mouthfeel rather than nutrition, since you get your minerals from food, but it is the reason many people prefer a six stage system once they have tried both. It will not make your water hard again. The amount added is a fraction of what is in untreated hard water, and not enough to scale a kettle. Which stage 3 do I need? PP sediment, 1 micron. Choose this if your water carries visible particles, or you are on an older supply with cast iron or galvanised pipework. It catches the sludge and scale the 5 micron prefilter lets through and gives the membrane an easier life. It is also the safe default if you do not know which your system came with Granular activated carbon. Choose this if taste and smell are the priority and your water runs clear. It gives chlorine, chloramine and oil based compounds a second pass before the membrane, which suits heavily chlorinated mains supplies Will it fit my system? First check that your system really is a six stage with a mineraliser fitted after the post carbon filter. If the water goes straight from the post filter to the tap, you want the five stage set instead. The 10″ x 2.5″ cartridge is the industry standard, so this set fits the great majority of under sink RO systems sold in Ireland, including Ecosoft, PurePro, Supreme, Proline Plus, Pallas, Platinum Wasser, EirSoft, AquaSoft and Perfect Water Systems. The simplest check is to pull one cartridge out and measure it. If it is roughly 25 cm long and 6 cm across, this set is your replacement. Not sure? Send us a photo of your system and we will confirm before you order. Time for a change if you have noticed The tap running slower than it used to Chlorine taste or smell creeping back A rising TDS reading on your meter Cloudiness or particles in the glass Simply 12 months since the last change How often should each stage be changed? The prefilters and the post carbon filter are consumables and typically last 6 to 12 months depending on how hard your water works them. The membrane lasts considerably longer, usually two to three years, provided the carbon block ahead of it is changed on schedule. That is the part people get wrong. A tired carbon block lets chlorine through, and chlorine is what destroys a membrane. Changing the cheap cartridges on time is what protects the expensive one. Fitting your new cartridges Turn off the feed water valve and open the RO tap to release the pressure Close the tank valve so you are not draining stored water across the floor Note which way round each cartridge comes out. They go back the same way. The post filter and the mineraliser are directional Hand tighten the housings only. The wrench is for opening, not closing Flush the system and discard the first full tank before drinking Prefer not to do it yourself? We service reverse osmosis systems in Ireland, including ones we did not fit. Send us a message and we will arrange a visit. Questions Does this include the membrane? Yes. A genuine Ecosoft 50 GPD membrane is included, which is the expensive part of any RO service. Many sets sold as replacement filters cover the prefilters only. What does 50 GPD mean? Gallons per day, the rate at which the membrane makes purified water. 50 GPD is the standard rating for domestic under sink systems. If yours was fitted with a higher output membrane, get in touch and we will sort the right one. Do I need to flush the system afterwards? Yes. New carbon cartridges shed a little harmless dust on first use, so let the system fill and discard the first full tank before you drink from it. How do I know when the membrane needs replacing? A TDS meter is the reliable test, but take the reading before the mineraliser if you can. The mineraliser deliberately adds minerals back, so a reading at the tap will always be higher than the membrane's true output.