FLTSETC6G6S6I3M502 Reverse Osmosis Replacement Filter Set | 3 Year Set, 50 GPD RO Membrane, 10 Inches, Includes 23 Water Filters, Carbon GAC, ACB, PAC, and SED Filtration

Excellent value for money, they work as they should and I like knowing I have replacement parts for 3 years, installing them is simple and even comes with extra tubing.

This is what I've been using since 2022 on our iSpring RO and has worked as advertised. We're on well water, where the TDS can creep up above 1000, perhaps due to the salt use on our water softener. Using these filters, the TDS comes out at around 42, making the water safe for drinking. We use a distiller as well, which create about a 3-TDS water; we mixed the two to create about a 20 TDS great tasting water, good for drinking, cooking and coffee. I do replace the RO restrictor every time I replace the membrane to make sure it works efficiently. I also use a flush kit for the membrane to help it stay as clean as possible. This kit is a good value and I recommend it.

Perfect filter, easy to install, great replacement cost for 3 years of filters.

Quick delivery with well packed package. Good value for money. Unfortunately have to take one star as with filters it was not included wrench and I had to purchase it separately what delayed filters replacement.

Didn’t realize how helpful this system is!!!! Comes with everything including a faucet! No longer replace coffee maker every 3-6 months despite cleaning. We mainly use the RO water for coffee maker, humidifier, etc. Very affordable and we’ve never run out of RO water for the seemingly small tank. We do draw up an extra pitcher of water after filling appliances to refill the coffee maker etc. We didn’t mount the tubes in order to pull the bar of tubes out to replace without crawling into the cabinet. Still going strong as of 5/2026 without any issues!

I ordered this RO system several years ago and it works fantastic. I routinely check the TDS of the tank and have never found it to be over10 ppm. Generally it is below 5 ppm. I ordered this kit which contains 3 years worth of filter changes as well as a new RO filter. I don't actually change the filters very often, maybe once/year and it still provides excellent water. It isn't the easiest thing to change all the filters out, but I have seen worse systems. I used to have a "professional" system which was in the house when I bought the house and it never worked right. This unit does and at a very low price.

Todo muy bien todo completo

The system is great and the replacements are just as solid. Been using for years, no complaints.

Son una excelente opción para sustituir los filtros para el sistema de ósmosis inversa de la marca Rotoplas, me preocupaba que no fueran de la misma medida que los rotoplas pero le quedaron perfectamente bien y a un muy buen precio, yo compre el kit para 3 años, todo muy bien buen sabor de agua y sin sedimentos.

Amazon should work up some procedures to compensate for the cases like this. Negligence likely related problem but the choice given to customers is to accept the package with missing part or sent everything (XXkg box) back. This is very inconsiderate to the customers, seller and environment. Anyway, missing part of the order, in this case is the fault of the seller / manufacturer so this product is not as advertised.

Great as usual

El ahorro es sustancial y es exactamente no que se necesita

Sometimes it's not about when everything is perfect, it's about what you do when it isn't. Package of filters was a good price, arrived in 36 hrs or so, quality looked good, easy to install, but... ...the newer quick-fit PAC filter was designed for all 1/4" pipes, and I have a mixture of 1/4" and 3/8". I called up Express Water and explained the problem, emailed a couple of pics, and for a day or 2 we discussed potential solutions. They even went as far as mocking it up in their lab and sending me a pic! Some 1/4" to 3/8" adapters and some spare 1/4" pipe arrived, free, in about 4 days, and everything is working fine. Thanks guys - great support, and I am one happy customer!