Quick answer
Replace the PETKIT Filter Unit RECT every 2-4 weeks, but check for reduced water flow, visible dirt, or a stale smell as signs it's time for a change.
What affects filter lifespan?
The multi-layer filtration system in the Filter Unit RECT traps hair, debris, and impurities. If you have multiple cats, a very dusty home, or hard water, the filter may clog faster. Conversely, in a single-pet household with filtered tap water, you might stretch the interval to the longer end of the 2-4 week range.
What happens if you wait too long?
An overdue filter can become a breeding ground for bacteria, making the water less appealing to your pet. You may also notice reduced water flow from the fountain or a stale odor. Replacing on time helps prevent urinary issues by ensuring your pet always has fresh, clean water.
FAQ: When to change the filter
How often should I replace it?
Every 2-4 weeks, depending on usage and water quality. For most homes, a monthly swap works well.
What are the signs it needs changing?
Look for reduced water flow, visible dirt or discoloration on the filter, or a stale smell from the fountain.
Can I wash and reuse the filter?
No. The filter is designed for one-time use. Rinsing it may remove surface debris but won't restore its filtration capacity. Always replace with a new unit. Keep a spare Filter Unit RECT on hand so you're never tempted to stretch the replacement interval.
Product facts
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PETKIT Filter Unit RECT: The PETKIT Filter Unit RECT is a replacement filter compatible with the PETKIT Eversweet Max (Cordless) pet water fountain. It uses a multi-layer filtration system to bring fresh, clean water and helps keep your pet free from urinary diseases.
PETKIT Filter Unit RECT
