Advanced 200-Gallon Faucet-Mount Water Filtration System From Culligan,, 25. Product Description Each filter cartridge needs replacement every 200 gallons or 2 months, although cartridge life can vary depending on your water usage and conditions. Annual costs are considerably higher than what you pay for most other faucet mounted units. How to replace the filter? Don?t worry, it?s not difficult at all ? at least in theory (more on this in a bit): Simply unscrew the cap from underneath the housing. The cartridge will drop down into your hand. Dispose of the old cartridge Insert a new one. Turn 2 and a half full turns until it stops. Open the faucet and check for leaks. Tighten cap if need be. Flush the new cartridge for at least 10 minutes to remove all carbon fines. From the Manufacturer Put the on-tap convenience of the Culligan FM-25 Polished Chrome faucet mount filter to work for you. This unit is ideal for individuals seeking a solution to the #1 water quality issue as identified by consumers - that of bad tastes and odors in their water. This filter goes even further in protecting against additional water issues that are of concern. The FM-25 provides Level 3 ? Advanced Filtration for the reduction of bad taste odor, aesthetic chlorine taste odor, sediment, lead, cysts such as giardia and cryptosporidium, turbidity, atrazine, lindane, and particulate class I. The filter cartridge has a life of up to 200 gallons or 2 months. Adaptors included fit most aerator faucets. Please see install guide for detailed explanation. For cold water use only Product Features Provide your family with visibly clean, great-tasting water for drinking, cooking and more FEATURES: Reduces atrazine, chlorine, lindane, lead, particulates class I, turbidity and bad taste/odor; Carbon block filtration method; Flow rate of 0.5 gpm at 60 psi; 30-100 psi pressure range; 40-100F temp range; Easy installation with no tools COMPATIBILITY: Includes adapters for all standard sink nozzles (does NOT fit drop-down faucets) FILTER LIFE: Up to 2 months or 200 gallons, depending on usage and water conditions CERTIFICATION: Tested and certified by IAPMO against ANSI Standard 42 and 53 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!