REFILL ACCESSORY FOR DRINKWELL PET FOUNTAIN 

Refill Accessory for Drinkwell Pet Fountain	Product Code: RA Price: Check Latest Provides an additional 6 cup capacity (the fountain and refill accessory together hold 12 cups. Plenty for a thirsty bunch!) Attaches easily at the rear of the fountain. Keeps the fountain bowl filled longer, so you don't need to add water as often.