Waterdrop 3US-MAX-F01 Replacement Filter Replacement for Filtrete 3US-PF01 3US-PS01 Maximum 3US-MAX-S01 Aqua-Pure C-Cyst-FF Manitowoc K-00337 K-00338 NSF ANSI

I use these for my 3M Filtrete system. They work very well. All the "city flavor" and smell is removed from my water, which is quite a blessing. My water is always clean and clear, with none of the sand or other little particles that we can get here in the desert. I have been using these as a direct replacement for a couple of years, and they fit nice, screwing right on, tight with no wobble or leaks. Great filters. Just mark them with a Sharpie on your install date - We have extremely hard water, and mine last me about 9 months. Using these is a lot more economical than name brand. Read more

Best price for replacement 3US Max filters and they work just as good! Read more

These are effective replacements for 3US-PF01 Filtrete high capacity, under-sink filtration systems. We have water with a heavy mineral content in this part of Jefferson City, MO. It means the water has a OK taste, but not really good, kind of a dusty flavor. So, since I drink a lot of water and make a lot of ice trays, I wanted something to make the experience better. Hence, I installed the Filtrete system. I knew the filters were expensive, running at around $50 a pop, plus tax, but for good-tasting water, it was better than a pitcher or a Pur system, for my money. The long-life filter is designed to go six months, or over 1000 gallons of water. That's 10 Pur filters, by the way, or $140 worth of filters! The water tastes good, and makes really good ice cubes. It also improves the flavor of meals that need water in cooking. The water flow is also better than a Pur faucet filter, due to the extra size and filtration capacity. Well worth the money. These filters are easy to change, too. I have my unit installed just inside my right under-sink cabinet, against the side wall. This allows easy changes without blocking access or requiring that I get down on hands and knees to make changes. A simple ¼ twist to the left to unseat the filter, then pull it down and out. A few drops of water will drip, but cleanup is easy, no big messes. Then press the new filter onto the stem, and twist to the right to seat it. Run for 10 minutes to fill and flush the filter, then take a sticker and either place it on the filter, or a more visible place if desired. I take and go six months into my phone calendar and set a reminder to change the filter six months later, and set it to Repeat every six months later. Very handy to do that! Read more

Great price, easy to install. Replacement for my previous brand and works just as well. Read more

Fits perfect, No leaks, Water is clear. Flow is good. Read more

Easy to install Read more

Good product. Just as expected Read more

I have been using these in my home for 5 years. Easy to replace, always in stock. I change them every 4 months instead of every 6 months, the water is always crystal clear and they leave no taste. Highly recommend them. Read more