8 Pack AQUACREST ZR-017 Replacement ZeroWater ZR-017 Water Filter Economical alternative to expensive substitutes.<br> Easy installation and operation.<br> Provides cleaner, fresher water by reducing impurities.<br> Does not remove minerals which may be beneficial to health. 1, Fine mesh filter 2, Ion exchange resin 3, Carbon filteration 4, Fine mesh filter Remove lid and water reservoir from top of dispenser/pitcher and remove filter from packaging. Screw the filter tightly into the bottom of the reservoir to obtain a complete seal with the o-ring. Complete seal is needed. Remove lid and fill the reservoir with cold tap water. We use ion exchange resin and advanced carbon as our material. You will get clean filtered water for your life-which is like making thousands of plastic water bottles disappear. Reduce chlorine, taste and odor, mercury, cysts and lead for cleaner and keep you hydrated, maitain energy and feel better.