Cattae 'Serenity' Waterfall Pet Drinking Fountain, 1 Gallon Capacity Over 1 Gallon Holding Capacity 2-Step Filtration Process Multi-Level Drinking Pool Heights Very Easy Set-Up, Easy to Clean, Great Design, High-Quality Unit 100% MONEY-BACK-GUARANTEE! If you are not satisfied with this product, please return for a hassle-free refund within 90 days.