






💧 Elevate your water game—because your health deserves the purest flow.
The Express Water CSGIM5 6-month replacement filter set features a 50 GPD reverse osmosis membrane and a comprehensive 5-stage filtration system including sediment, carbon GAC, ACB, and PAC filters. Designed for 10-inch RO systems, it reduces up to 99.99% of impurities such as heavy metals, microplastics, chlorine, and VOCs, delivering crisp, clean, and great-tasting water. Certified for quality and easy to install, this set ensures long-lasting performance and peace of mind for health-conscious professionals.










| Best Sellers Rank | #18,737 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #152 in Replacement Under-Sink Water Filters |
| Brand | EXPRESS WATER |
| Customer Reviews | 4.7 out of 5 stars 926 Reviews |
| External Testing Certification | CE |
| Item Weight | 3.5 Pounds |
| Material | Polypropylene (PP) |
| Product Benefits | Experience better tasting water, drink healthier water, and enjoy long-lasting filtration at a great value Product Benefits Experience better tasting water, drink healthier water, and enjoy long-lasting filtration at a great value See more |
| Product Dimensions | 4.5"D x 13.25"W x 13.25"H |
K**R
Great Filtration System
There filters were easy to install and have given me the water quality that I need for my RO system. They system seems to be sturdy and is working great for out fish tank.
A**R
Works for tier-1 5 stage
Seems to work well, water is clear and without taste. Price was reasonable.
J**G
good water
easy to install and water taste good
H**L
Great
As always great filters I bought a water tester I live in Arizona home of crap tap water & this R/O device is wonderful. Water tests out great after changing the filters out. Works great for good quality water
D**B
Great cost-effective RO system filter replacement kit from the original manufacturer
I purchased my original Express Water reverse osmosis system almost ten years ago for the kitchen sink and it has been working great ever since. The original product came with two sets of filters which I kept in service for way too long. I am going to be much more diligent on filter changes now and purchased this replacement filter set which is sold by the original manufacturer. I had a plumber here for another job, so I just had him change the filters for me including the RO membrane. Luckily I kept the round plastic wrench from the original kit which slides over the filter holder body and grabs the ridges perfectly which makes it a lot easier to unscrew. For a few bucks, they should include one in this replacement kit because I'm sure most people don't remember to keep it. Replacing the filters was completed pretty quickly with no snags. Be sure to read the instructions and properly flush your reverse osmosis system properly after replacing the filters.
J**Y
Great Filters, Great Water Flavor
Everything fit great. Installation was moderately simple. The 5th filter did not fit with the existing connections in my system, but a trip to Home Depot for a couple of new quick connects and $5 later, everything is working great. My system is about 10 years old, so I'm sure the connections were just dated anyway. I ran the water through the RO system for an hour and it tastes better than ever. Its taste rivals bottled water. I drink about a gallon of water a day, and after a week there seems to be no degradation in the flavor of the water. Rated 4 stars as instructions were not included. Even a simple diagram would be much appreciated. Thankfully, I'm not so dumb I couldn't figure out how to hook everything back up after replacing the filters.
R**.
Under the sink RO system replacement filters work great
The Express Water system has been producing wonderful, good tasting water for years not. I have the 50 Gal / day and I make coffee, cook, connect it to my ice maker with cold water in the door, and I can say all around it is a good value. I recommend you get the mineral version so your coffee tastes great, it is important to have the minerals in your water for health as well. It's a routine maintenance thing, it takes a long time to prime them and stuff, but I won't go back to plain old tap water!
M**.
Because Your Water Deserves to be Royally Treated
If you're looking to treat your water like royalty, look no further than the Express Water CSGIM5 Filter Set. With 5 high-quality filters, including a 50 GPD RO membrane, carbon GAC, ACB, PAC filters, and sediment SED filters, this set ensures that your water is not only filtered but also purified to the highest standard. The 10-inch size of the filters ensures that they last for up to 6 months, giving you clean, crisp water that is fit for a king or queen. Say goodbye to impurities and contaminants in your water and hello to the Express Water Filter Set.
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