Feature: Replacement Period - Every 2 to 4 weeks for better water quality, mainly depending on water condition and the number of pets. 4-Stage Circulating Filtration System - The system uses a replaceable round filter to purify the water, remove dirt and food particles . The round filter is composed of cotton layers, coconut shell activated carbons and ion-exchange resins. It provides fresh clean water to your lovely pets. 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 health. Replacement for Cat Drinking Fountain Stainless Steel and Colorful Cat Water Fountain with LED Light 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. Specification: Model: DC LED Color: orange, blue, gray, cyan Power supply: 5v/1A Power: 1.5w Line length: 1.8M Capacity: 2L Product material: PP Product packaging features: 1. PP material, safe and environmentally friendly 2.3 kinds of fountain-style water outlet design, can attract more pets to drink,good for health. 3. 2L large capacity, to provide pets with drinking water guarantee. 4. The silent water pump can be disassembled for easy cleaning