The PetSafe Drinkwell Original Pet Fountain provides 50 oz. of fresh, filtered water to your dog or cat. The free-falling stream of water encourages your pet to drink more. The receiving ramp is designed to reduce the splash of the falling water while the activated carbon filter eliminates bad tastes and odors, keeping your pet hydrated and healthy. Included in the Box PetSafe Drinkwell Original Pet Fountain Carbon Filter Fountain Pump with Adaptor Instruction Manual Product Dimensions Water Capacity: 50 oz. Fountain Assembled: 11 in. L x 9 in. W x 7 in. H Power Cord Length: Approximately 5.5 ft. Frequently Asked Questions Q: Can I use this drinking fountain outside? A: No, this pet water fountain is designed for indoor use only. Q: How often should I clean my pump? A: You should disassemble and clean your pump every 2-4 weeks to help keep your fountain running optimally.