Drinking plenty of water is as essential for your pet’s health as it is for your own. By providing a constant stream of falling water the innovative Drinkwell Original Pet Fountain makes drinking more attractive and fun for your pet as well as more convenient for you. No longer will your pet have to slurp stagnant water from a traditional bowl or hop onto the kitchen counter to try to drink from the sink. A patented 5-inch free-falling stream of water gives your pet a refreshing drink from any angle so she no longer has to wait her turn for a quick drink. The replaceable charcoal filter removes bad tastes and odors. The pump is submersible to ensure nearly silent operation. The curved receiving ramp prevents falling water from splashing on your floor. Rubber feet keep the fountain secure on your floor. Runs on a low-voltage 12-volt system that plugs into your wall outlet. Holds 50 ounces of water. Easy to take apart for quick cleaning. Covered by a 1-year manufacturer’s warranty. Drinkwell Model Comparison Table Models Capacity Multiple Pet Use1 Free Falling Stream2 Replaceable Charcoal Filter Adjustable Flow Receiving Ramp3 BPA Free Plastic Dishwasher Safe Pre-Filter Low Voltage System Anti-Bite Cord Lowered Water Line4 Platinum 168 oz. -- -- Big Dog 288 oz. * -- -- Original 50 oz. -- ** -- -- -- -- 360 128 oz. -- -- * Except for reservoir bottle. ** Except for accessory reservoir bottle. Feature Notes Multiple pet use depends upon the size and number of pets in the household. Consult Drinkwell water charts for more information. Patented Free Falling Stream helps encourage pets to drink more Receiving ramp helps to minimize splashes. Lowered water line to accommodates large breed dogs Recommended Daily Water Intake for Cats Estimated Days Filled** Approx. Cat Weight Ounces Per Day Original (50 oz.) 360 (128 oz.) Platinum (168 oz.) Big Dog (288 oz.) 5 lbs 5.4 oz 9 days 24 days 31 days 54 days 10 lbs 10.7 oz 5 days 12 days 16 days 27 days 15 lbs 16.1 oz 3 days 8 days 10 days 18 days 20 lbs 21.5 oz 2 days 6 days 8 days 13 days 25 lbs 26.8 oz 2 days 5 days 6 days 11 days * Daily Maintenance Recommendation: 70mL per kg (Cat Weight) or 1.074 ounces per pound. ** Estimated Days Filled: The above calculations do not take into account water evaporation or other external factors such as spilling. Estimations were made on a per cat basis and do not account for multiple pets" use of fountain. All calculations were made using the maximum level of water intake for specified weight. Recommended Daily Water Intake for Dogs Estimated Days Filled** Approx. Dog Weight Approx Daily Water Maintenance* Platinum (168 oz.) Big Dog (288 oz.) 5 lbs 1.5 - 5.4 oz 31 days -- 25 lbs 7.7 - 26.8 oz 6 days 11 days 50 lbs 15.3 - 53.7 oz 3 days 5 days 75 lbs 23.0 - 80.5 oz 2 days 3-1/2 days 100 lbs 30.7 - 107.4 oz -- 2-1/2 days * Daily Maintenance Recommendation: 20-70mL per kg (Dog Weight) or .307-1.074 ounces per pound. If your dog is consuming more than the indicated amounts above this may be a sign of polydipsia or other disease. Please seek the counsel of a veterinarian as soon as possible. ** Estimated Days Filled: The above calculations do not take into account water evaporation or other external factors such as spilling. Estimations were made on a per dog basis and do not account for multiple pets" use of fountain. All calculations were made using the maximum level of water intake for specified weight.