Review on 💧 Superior Culligan Compatible Replacement Cartridge Membrane for Optimal Performance by Justin Sherman

These filters were relatively well priced. As others have pointed out, the primary blue filter had to be cut with a hacksaw because it was too long. My tap water had 420 ppm unfiltered particles, after a new installation it was 16 ppm in the water. Not that bad. The pH increased by 0.80 after the filter installation compared to unfiltered tap water. In theory, changing the filter is relatively easy, but working under the sink can be tricky. I also replaced the tank because the diaphragm was damaged and wouldn't hold 8psi when empty.