Bests & Worsts Reviews from Amazon

I purchased three of these and ran them in-line. The first unit has a 15 micron filter, the second has a 5 micron filter and the last is a carbon filter. I did have a leakage issue on the initial test. One of the filters was gushing water even after I over tightened the housing. Turns out it was operator error. I had rinsed the units out upon receiving them, when I placed them in the drying rack, the o-ring fell off that unit. When I placed it back in the unit, I decided to apply a little silicone faucet grease to each o-ring. Also, I wrapped the units' threads with Teflon tape for a little more piece of mind. The next test was all dry. I hand tightened the housing plus a quarter turn using the wrench as the instruction specify. I'm using this with my existing faucet from an older water filtration system that has a 3/8" connection, so I used Watts LFA125 for the water in and out. After two weeks, I opened the units up, the filters are already discolored, as I expected with our well water. I'll probably change the 15 and 5 micron filters every three months and the carbon every five or six months. I may purchase more of these and either hook them up to filter all the house's water, or just run them for the laundry machine, our whites do not stay white very long. Overall, great filtered water and at reasonable price!