General description This 8pcs filter set is designed for 3L round pet water dispensers, ensuring compatibility with various models on the market. With a diameter of 14.6cm, it is essential to check the size before purchasing to guarantee a proper fit. Technical specifications Filter diameter: 14.6 cm Composition: Cotton layer, activated carbon, and ion exchange resin Usage Replace the filter every 1-2 weeks in summer and every 2-4 weeks in winter. Replace more frequently if multiple pets use the water fountain. Soak the filter in water for 3 minutes before use and rinse thoroughly under running water.