Pet Fountain Replacement Filter: This replacement pet fountain filter fits the iPettie Tritone and Fiumi pet Lotus pet water fountain. Dual filtration system: The charcoal filter helps purify water and remove unpleasant odors, while the foam filter can block hair, dust or food debris. Health and safety: the filter is made of environmentally friendly and non-toxic materials, which helps to ensure water quality and provide healthy and pure water to protect the health of pets. Replacement cycle: The carbon filter should be replaced every 2-4 weeks and the foam filter should be cleaned every 2-4 weeks and every 2-4 months to achieve better water quality. Tips: Before replacement, please rinse the filter with clean water, it is better to continue to provide enough filter to ensure the water quality. Product Description Features: 1. Pet fountain replacement filter: Suitable for iPettie Tritone and Fiumi pet Lotus pet water fountain 2. Dual filtration system: The carbon filter helps purify