Review on Enhanced KOHLER 77688 NA Aquifer Replacement Cartridge for Superior Performance by Todd Phillips

In July 2020 I installed a water filter under the sink with a Kohler Duel cartridge. Everything was good. Both filter cartridges replaced in May 2021, but one of them was leaking. I sent them back to Revain for a replacement which I received promptly. But now, after 5 months, the water consumption is about 50% less than when the filters were new. A noticeable chlorine taste also returned. Very disappointed with the short lifespan of the replacement cartridges and the replacement cost has increased significantly since May. I'll try swapping out the cartridges again, but if they don't work well I'll move on to a different undersink water filtration system.