PetSafe Drinkwell Original Pet Fountain with Bonus Filters 50 ounce water capacity is great for small dogs and cats Free-falling stream entices pets to drink more water Includes replaceable carbon water filter that removes bad tastes and odors, keeping water fresh Includes Bonus Filters at no charge Adjustable flow control knob allows you to customize the water flow Made of BPA-Free plastic and top-shelf dishwasher safe Call, chat or email with our expert US-based customer care specialists six days a week; They are waiting to assist you and your pet with your product needs PetSafe brand has been an industry leading US manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year Free-falling stream adds more oxygen for freshness Pets need 1 ounce of water per pound of body weight each day Helps prevent urinary and kidney diseases through increased hydration Constant circulation prevents bacteria growth Removes bad taste and odors, keeping water fresh Activated carbon made from coconut shells Top-shelf dishwasher safe (excluding pump and adaptor) Pump is designed to disassemble for cleaning Pump is submerged to run more quietly Receiving ramp reduces splash and sound of falling water Adjustable flow control to increase or decrease the flow of water