The PETKIT Fountain Replacement Filters have double filtering components and are made of high-density micropore filter pulp which allows for the fountain to capture your pet's hair and other impurities in the water. Each pack contains four filters. The filters are compatible with Gen 2, 3, and Solo Eversweet water fountains.

Features: 

• 𝐒𝐌𝐀𝐑𝐓 𝐅𝐎𝐔𝐍𝐓𝐀𝐈𝐍𝐒 𝐅𝐈𝐋𝐓𝐄𝐑: Smart water fountains filter for dogs and cats removes impurities and odor and keeps the water tasting fresh
  
  
• 𝐊𝐄𝐄𝐏 𝐖𝐀𝐓𝐄𝐑 𝐂𝐋𝐄𝐀𝐍: Replaceable foam filters prevent hair and debris from going into the pump and keeping water clean

• 𝐑𝐄𝐏𝐋𝐀𝐂𝐄𝐌𝐄𝐍𝐓 𝐅𝐈𝐋𝐓𝐄𝐑: For those who have the older eversweet fountain 1.0, you will need the filter tray add on to apply the eversweet fountain 2.0 or 3.0 replacement filters
  
  
• 𝐌𝐀𝐈𝐍𝐓𝐀𝐈𝐍 𝐘𝐎𝐔𝐑 𝐏𝐄𝐓 𝐅𝐎𝐔𝐍𝐓𝐀𝐈𝐍: The filters should be replaced every 2 months under the smart mode and every 1 month under the normal mode to maintain your pet fountain. The filter indicator will turn orange when the filter needs to be replaced