PUR 2-Pack 2-Stage Faucet Mount Basic Replacement Filter. It has Maxion Filter Technology for maximum contaminant reduction. It is certified to reduce over 70 contaminants, including 99% of lead, 92% of agricultural pesticide, 96% of mercury & more. It reduces trace levels of pharmaceuticals. It fits all Pure Faucet Mount Systems. 1 filter provides up to 100 gallons 2 to 3 months of clean water. It fits Faucet Mount TV#'s 210135, 214900, 214901 & 214902. Retail Pack includes one filter. Change filter every 2 to 3 months. Removes up to 71 contaminants but leaves behind beneficial fluoride. Approximately 100 gallons. Use with PUR Faucet Systems FM333B, FM2000B, PFM150W, PFM400H, PFM450S, PFM800HX. PUR does not filter microbes.