iSpring Greatwell Reverse Osmosis Membrane 100 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC1

I have the worst tasting water and since using this system the water taste better than any bottled water. One note, the other off brand reverse osmosis filters should not be used when it does come time to replace them. I tried another filter brand and the water was not drinkable. After replacing it with the original manufactures filters the water returned to perfect. It did require flushing out the system to get the impurities out from the off-brand filter I must compliment the seller on this product; they did offer a full refund even since it was past the returned date. Since I could use it and I did give it to a friend that installed it. The filter works great and plans on buying more from this seller.

We originally purchased our under-sink 7-stage filtration system in 2019, and it has performed flawlessly since installation. However, three weeks ago, we encountered an issue for the first time. Upon reaching out to customer service, we had the pleasure of working with Nick. From the very beginning, Nick demonstrated an exceptional level of professionalism, knowledge, and genuine care. He patiently guided us through a thorough diagnostic process and accurately identified the problem—a faulty solenoid. Nick promptly consulted with his team, and despite our system being just beyond the extended warranty period, the company made the remarkable decision to replace the entire system. Nick's dedication did not stop there. He ensured the replacement process was seamless, providing consistent follow-up and follow-through at every stage. His politeness, attentiveness, and commitment to customer satisfaction were truly outstanding. We are incredibly grateful for Nick's support and the company's willingness to stand behind their product. Thank you, Nick—your efforts and professionalism are deeply appreciated!

changed these after a year of use. It was pretty easy to change them, and my system got a nice boost of efficiency. Nick at tech support has been very helpful

We absolutely love this water filter. The quality is top notch and honestly, it's hard to drink water anywhere else now because nothing tastes as good as our water does. The customer service is above and beyond as well. We recently had the pleasure of working with Nick to help us with a small issue with our system. He was patient, helpful and solved our problem quickly. We really appreciate working with such a great company!

This one doubles price of similar products on Amazon. I bought this to replace a newly bought one that does not perform and gave TDS reading more than 50ppm, this brings TDS under 15 after flushing system less than 5minutes, as a normal new RO should do.

I've had my system for 7 years now, and have replaced the filters every 6-12 months, but the RO filter only 3 times, this being the third. My unit came with the 75 (GPD rating), but I tried the 10 GPD unit and it fits the same. I compared them when I removed the old one and the center (blue) is a larger diameter. I'm assuming that gives it more surface area and therefore more flow. Either way it works great and the water tastes great as well. I couldn't tell a difference when just replacing the RO filter. I can after replacing the others.

Got this to increase water output from 75gph to 100gph. TDS dropped from 135 to 2.

It's sooo nice to have the iSpring under-the-counter reverse osmosis water system. We live in a time that we need to be concerned about plastics and to have this system makes me feel like I'm helping to reduce plastic use and has made my life so much easier not having to haul containers of water around! One of the many benefits of this system is the outstanding customer service. Don't be afraid of using this system! I've had questions on various occasions since I purchased the system in 2015 and iSpring has ALWAYS been extremely helpful. Most recently, Nick at iSpring helped me when I managed to put a replacement filter together incorrectly. (That was MY fault! I didn't read the instructions closely enough!) I emailed the company and Nick provided the information I needed before the end of the day. When you purchase this system, know that you're getting a great product with really terrific customer service!

Ainda está embalado mas chegou dentro do prazo estipulado.

Does what it says on the lable

The membrane is from a very different manufacturer.

Perfetta come d descrizione. Installazione semplice.

Ottimo ricambio per il mio impianto ad osmosi inversa.