This square replacement filter is a multi-stage purification accessory specially made for cat and dog water fountains, adopting high-density filter cotton and coconut shell activated carbon as core filtering materials. Its multi-layer composite structure delivers full-range water purification: the outer filter cotton traps pet hair, food scraps and large sediment to prevent pump clogging; premium activated carbon absorbs residual chlorine, peculiar smells and organic contaminants to freshen water taste; built-in ion exchange resin softens hard water, cuts limescale and reduces urinary stone risks for pets. All raw materials are food-grade non-toxic components, safe for long-term pet drinking. The standard square shape fits most mainstream automatic pet water dispensers, with plug-and-play installation requiring no extra tools. Each filter is individually sealed for hygienic cross-border shipping. It is advised to replace the filter every 2–4 weeks after rinsing before use, maintaining crystal-clear, healthy drinking water to encourage pets to drink more and protect their kidney health.
