iSpring FC15B High Capacity Activated CTO Carbon Block Filter for Under Sink and Whole House Water Filtration System, 5-Micron 10"x4.5"

Installation of the iSpring WGB21BM whole house water filter was surprisingly easy—even for a non-plumber. The system is thoughtfully designed, and everything connected smoothly without issue. But the real highlight is the improvement in our water quality—noticeably better taste right from the start, with no metallic aftertaste and noticeably clearer water throughout the house.I also want to give special credit to iSpring’s customer service, which was outstanding. I had a very minor issue and reached out—within a short time, a real person responded with a solution and followed up afterward to ensure I was completely satisfied. He even encouraged me to reach back out anytime in the future and emphasized that iSpring stands behind their products and wants every customer to be happy.In a time when post-sale support often leaves much to be desired, iSpring delivered personal, responsive care that exceeded expectations. Highly recommended.

This product is very easy to install. You'll need some handyman skills to connect into the system. I used PEX and Shark Bite connectors for my installation . I spoke to Nick in customer service and he was most helpful to answer my questions. I recommend this product for anyone who has issues with sediment and taste in their water. After installing this system we cleaned all the sinks and tubs to remove the old staining. The stains have not returned and the odd taste is gone. We change filters once a year and quality of these filter are outstanding.

This filter system works great, we are on a well with heavy iron and it handles it. We have had this installed for 6 months now with no issues until we lost some water pressure. We changed the filters and contacted customer service, John was very helpful getting our issue sorted out and questions answered.Overall they're really good filters, easy to install and use. The small size makes them easy to change and my plumber didn't have any problems installing the unit. Great company, really easy to get in touch with if needed and helpful over the phone.

I purchased this twin tank system for my RV. Unit came very well packaged and I was very impressed with the initial quality. Thick steel mount, thick walled tanks gave me a sense of quality. I knew in advance this system does not come terminated on the input and output so I put on my own fittings. In my case I wanted garden hose fittings.The output side worked very well, easy install, no leaks. However, no amount of tape or plumbers putty would stop a small persistent leak on the input side. In fairness the leak was very small, about one drop every 30 seconds. I re-installed the fittings four or five times with the same result. A tiny leak. I was about to give up when I noticed the leak was always in the same location. I removed the fitting and took a magnifying glass only to find what looked like a hairline crack in the threads. I took the canister off and looked inside only to find a tiny pinhole in the plastic housing.I took some plastic solvent and repaired the threaded section and the internal housing and the leak stopped. I think what happened is during the molding of the housing the liquid plastic did not completely fill the mold and left this tiny pinhole through the housing to the external threads.Not sure if this would have been caught at the factory or if these units are even tested before leaving the factory, but this is a very small quality issue they should look into.So the only reason I gave it 4 stars was because of this tiny leak. Time will only tell if the repair holds, but so far I am leak free.Overall this is a high quality unit and I would not hesitate to buy another if needed.

Great deal, heavy & high quality. Best packaging I have ever seen. NPT threads with extra threaded nipples included. This is a high quality product at a great price.

I must say, I am pleasantly surprised! Our little town has well water and it spots everything and tastes like chlorine periodically. I had it tested by Culligan and they put in a chlorine filter. I can't have a softener as I have high blood pressure. We had the unit for a year but still had spots and it still didn't taste that great. At $33 a month, we finally decided to give a whole house filter a try.We have had it for about a month, now, and the water tastes awesome, no chlorine smell, and no more spots!!! The water is still hard but that can't be helped. For a very reasonable cost, we were able to take care of the issues!We read through the other reviews and used the teflon tape to help with the leak, worked great!It was a little larger than I pictured but no problem. My husband built a stand for it out of 2x4's so he wouldn't have to drill in the cement walls.All in all, we are VERY PLEASED!!!

I love my new filter system. My hair and skin feel so much better! My water is very hard and the quality of this system is amazing! A special Thank you to Julius who was so helpful with any questions I had.

For years, we had a large single tank whole house water filter system in our previous residence. However, our new home has a different layout and much more limited space to install a system. So, we were happy to discover the iSpring cartridge system and couldn’t be more pleased. It is extremely well made and I’m very confident this will last a long time. Although I had it professionally installed, it is simple to understand the assembly and maintenance processes. The price of the product is very fair too, although you’ll want to factor in the cost of and frequency of replacing the filters. In the long run, a cartridge system may cost a little more. But the smaller footprint and ease of being able to change the filters yourself (whereas the large single tank required professional replacement each time and was not inexpensive), it is a very satisfactory solution that I can highly recommend. Finally, I’d like to thank Julius from iSpring for the excellent customer support.