Features: Replacement Period: Carbon filter needs changing every 2 to 4 weeks while foam filter needs cleaning every 2 to 4 weeks and replacing every 2 to 4 months for better water quality, mainly depending on water condition and the number of pets. Dual Filtration System: The carbon filter helps purify the water and eliminate bad odors, while the foam filter blocks out any hair, dust or food debris. for Health and Safety: Made of eco-friendly and non-toxic materials, the filters help ensure the water quality and provide healthy and pure water to protect your pet's for health. Replacement for Fiumi: This replacement filter is specifically for iPettie and Fiumi Ceramic Pet Water Fountain, suitable for dogs or cats of all sizes. Kind Reminder: Before the replacement, rinse the filters with clean water, and it is better to have a constant and sufficient supply of filters to ensure the water quality. Specifications: Material:Activated Carbon and Non-woven Fabric Color:As the Picture Size: Approx. 11.2x7x13 for cm/4.41x2.75x5.12 inches(Package Type 2) Size: Approx. 11x7x7.5 for cm/4.33x2.76x5.12 inches(Package Type 1) Note: 1.Please allow 0-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.Other parts are not included. Thanks for your understanding. Package includes: Type1: 4 x Pet Fountain Replacement Filters 1 x Foam Filter Type2: 8 x Pet Fountain Replacement Filters 2 x Foam Filters