Pet Safety: with 2L upgraded Pet . Made from top quality cotton, premium exchange resin and activated carbon, it can remove chlorine, impurities and odors, catch hair and debris, and soften hard tap water to better quality water for and Dogs. Keep Water Lasting : Exchange resin remove and calcium in water, and it is made into pet- water (soft water) whose hardness is lowered; High performance activated carbon absorbs odor Easy To : Rinse the filter with water thoroughly before , and replace it regularly (depending on the frequency of ). Suggest : 1.Replacing Charcoal filters 4 weeks to keep the water clean. 2.Replace more frequently if multiple pets using the , rinse filter with water thoroughly before . 3.A small amount of carbon dust may be released for the life of filter which is not harmful to your pet. Colour:white Material:Non-woven fabric + activated carbon Package Contents: 5 x Activated Carbon Filter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.