Compatibility Ensured: Specifically designed for a 95oz or 2.8L Pet Fountain, to check the diameter of the hollow circle (1.4 inches) and the length of the square (3.9 inches) for a . Improved Taste: filters reduce the taste and odor of chlorine found in tap water, which can make the water more appealing to cats. Advanced Filtration Technology: Crafted from premium materials, each filter features Non-Woven Fabric to trap hair and debris, Coconut Shell Activated Carbon for removing impurities and odors, and Ion Resin to soften water and diminish heavy metals, enhancing overall water quality. Simple Setup and Routine Maintenance: To optimal performance, soak the filter in water for 2 minutes and rinse well under running water before use. For maintaining the highest quality of water, we recommend replacing the filter every 2-4 weeks. for Pets: Regular use of our filters helps reduce the risk of urinary tract infections and kidney stones in pets, promoting a healthier lifestyle and by providing consistently clean and fresh water. Specifications:12pcsand12pcs Color: As Shown Material: Non-woven fabric Package Contents: 12 x Cat Water Fountain Filters 12 x Sponges Foam Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.