Drinkwell Original Pet Fountain Size:50 oz. Or as recommended by the

Or as recommended by the attending veterinarian

Small: 34" - 38" / Medium: 38" - 42" / Large: 42" - 46" / X-Large: 46" - 50" / XX-Large: 50" - 54"

The block will not mold or mildew

Hook on back for easy hanging

Contains animals including poultry

Drinkwell Original Pet Fountain Size:50 oz. Or as recommended by thePetSafe Drinkwell Original Pet Fountain Developed by a veterinarian, the Drinkwell Original Pet Fountain provides 50 oz. of fresh, filtered water to your pet. A patented free falling stream of water entices your pet to drink more and continually aerates the water with healthful oxygen. A charcoal filter removes bad tastes and odors, giving your pet the best way to stay hydrated! Features: For use with cats and dogs under 40 lb. Replaceable charcoal