Philips WP3961 Replacement Filter for On Tap Purifier (For WP3861)Pure Taste filter for cleaner and better tasting waterThe Pure Taste filter removes unpleasant chlorine, bad tastes and smells, as well as large sediment from your tap water, ensuring purer and better tasting water for drinking, cooking and cleaning fruits and vegetables. In addition, the silver-coated active carbon prevents bacteria growth inside the filter, giving you extra safety for your water.Pure Protect alert informs you when to change the filterPure Protect alert is a sticker with the months of the year you can adhere easily to the filter cap. By marking the month of replacement, you can be sure you remember to replace your filter on time, ensuring you endless Pure Taste water.Hi-flow with maximum rate of 2 liters per minuteThis compact water purifier has a maximum flow rate of 2 liters per minute, which makes little change to the normal flow rate of unfiltered water. By simply rotating the water selection lever, you also have a choice of either a stream or a spray of unfiltered water or spray of filtered water.Quick Fit tap adapters for easy installation on your tapThis advanced water purifier comes with a number of tailor-made Quick Fit tap adapters, to help you having an easy and simple installation of your purifier in your tap. Real sense and simplicity.Advanced Quick Twist mechanism for easy filter replacementThe advanced Quick Twist filter change mechanism makes changing the filter quick, easy and secure, bringing sense and simplicity to your water purifier.