Having trouble getting your pets to drink well? GEX Pure Crystal Bowl helps you to eradicate these problems! Using a water pump to circulate the water through a unique filter that traps dirt/hair/uneaten food & reduce odor & chemicals, your pets will receive clean & fresh water all the time. The new CLEAR FLOW RANGE of PURE CRYSTAL BOWLS from GEX. More compact and suitable for small dogs & cats, these bowls consist of the well-known and popular functions of PURE CRYSTAL BOWLS that provide clean clear water for your pets to drink, while at the same time reduce health issues due to lack of drinking. These bowls use half sized filter cartridge.