ALPINEWATER 4396841, 4396710, Kenmore 9030, 9083, Filter 3, EDR3RXD1 Easy to Install Filter 3 Compatible with Premium Refrigerator Water Filter (Pack of 2) The real filter life span depends on water quality and level of contaminants, but for best filtration results, please Replace filter every 6 months or 200 gallons to maximize contaminant reduction. The sintered carbon block filter take the best effects to remove 99% Chlorine, odor, improve taste and stop cysts; By adding harmless additives, the carbon block filter can remove heavy metals such as Lead, Chromium, Arsenic, etc. Removal rate can reach to 99.5% KEEP THE BENEFICIAL MINERALS- Our water filter works with activated carbon to reduce odor,chlorine taste ,dirt, rust,turbidity,heavy metal and harmful sediments while keeping the water original minerals that are beneficial to human health. Reduce most of species contaminants, including pharmaceuticals, waterborne parasites, lead and mercury, pesticides, asbestos and industrial chemicals. Give You:Health water &amp; Better tasting --Delivers clean, clear water, create better tasting water for drinking.