Some folks have had better success by installing it AFTER the pre-filters and just before the water goes into the membrane

Turn clockwise to increase PSI and counterclockwise to decrease PSI

all of our 5# DI resin quantities are now shipped in a heavy duty FIVE mil mylar bags

✔ STAGE 4 : Select a 100  gallon per day (GPD) RO membrane with the best 98% rejection rates in the industry

Aries® 10" × 2½" Heavy Metals Removal Cartridge ICEMAKERCONNECTIONKIT Some folks have had betterAries 10" 2" Heavy Metals Removal Cartridge Aries 10" 2" Heavy Metals Removal Cartridge . Using premium Resintech media and offering oversized cartridge cavities, AF Series cartridges provide the best in water purification and filtration. Standard Features Aries 10" 2" Heavy Metals Removal Cartridge Scale, Taste & Odor Cartridges Aries FilterWorks offers a propriety blend of a high capacity weak acid ion exchange resin to reduce calcium and magnesium