Amazon has the PETKIT Cat Water Fountain, 63oz/1.85L Pet Water Fountain for Cats and Small Dogs for $25.99 + Free Shipping. Originally at $29.99, you save $4 on this deal. This water fountain has a total of 4.3 out of 5 stars on more than 8000 ratings.

Worried about your pet getting thirsty? Give them fresh and clean water by getting the PETKIT Cat Water Fountain. It features a design with three water flow settings. It has a 1.85L large water capacity so there will be no need for you to replenish it frequently. It can meet the needs of cats, dogs, birds, hamsters, and other pets, not only a water fountain but a natural birdbath and a funny pet toy. It has a smart LED indicator light that will easily tell you when it's time for a refill. 

Best Features:

• 1.85L water fountain
  
• Designed with translucent material
  
• Ultra-Quiet and Auto Power Off-Pump
  
• Smart LED Indicator Light
  
• Triple Filtration System
  
• The detachable pump can be washed and replaced