PetSafe Drinkwell Carbon Cartridge replacement 4PK

4 pack replacement carbon cartridge for use with PetSafe Drinkwell pet water fountains: 

• Butterfly Pet Fountain
• Drinkwell Pet Fountain 1.8L
• Drinkwell Pet Fountain 3.7 L
• Drinkwell Pet Fountain 7.5 L
• Streamside Ceramic Pet Fountain 1.8L
• Seaside Stainless Steel Pet Fountain 1.8L

Features

• Improves filtration
• Capture debris and large particles
• Keeps pump cleaner for better water quality