AONBOY Cat Fountain Replacement Filters, 24-Piece Set for S3-SC with Carbon and Sponge Filters

AONBOY Pet Water Fountain Filters are a 24-piece replacement set designed to filter water in the Stainless Steel Cat Water Fountain, model S3-SC, with a 108oz/3.2L capacity.

• Compatible with the S3-SC fountain — choose filters made for this model.
• 12 carbon filters and 12 sponge filters — keep replacement pieces on hand.
• Quadruple filtration — combines a sponge pre-filter with cotton, activated carbon and ion exchange resin.
• Soak and rinse for 5 minutes before use — prepare the filter before installing it.
• Replace the carbon filter every 2 weeks — follow a clear suggested replacement schedule.

These replacement filters are made for cat owners maintaining an AONBOY stainless steel fountain and looking for a staged way to filter fountain water. The sponge catches larger debris before water passes through the deeper filter materials. The system is intended to address hair and food particles, odors and water hardness through its different filtration components.

Which cat fountain does this filter fit?

The AONBOY Pet Water Fountain Filter is compatible with the Stainless Steel Cat Water Fountain, model S3-SC, which has a 108oz/3.2L capacity. Confirm that your fountain is this model before choosing the replacement set, since compatibility is given for the S3-SC.

• Made for the AONBOY stainless steel cat fountain.
• Model match: S3-SC.
• Fountain capacity: 108oz/3.2L.

What does the four-part filtration system do?

The AONBOY filter uses a sponge to catch larger impurities, including hair and food particles, before water reaches the deeper filter. That deeper section contains cotton, activated carbon and ion exchange resin; these materials are intended to reduce odors and soften water.

• The sponge serves as the pre-filter for larger particles.
• Cotton, activated carbon and ion exchange resin make up the deeper filter.
• The filtration stages address different types of impurities and water concerns.

How many replacement filters are included, and how do I prepare them?

The AONBOY replacement set contains 12 carbon filters and 12 sponge filters, for 24 pieces in total. Before use, soak and rinse the filter for 5 minutes to activate it. The suggested schedule is to replace the carbon filter every 2 weeks.

• 12 carbon filters.
• 12 sponge filters.
• Soak and rinse each filter for 5 minutes before use.
• Change the carbon filter every 2 weeks.

Regular fountain maintenance matters because adequate hydration is important to cats’ metabolism and is associated with a reduced risk of urinary tract infections; these filters support water filtration but do not guarantee a health outcome. The set suits cat owners with the compatible S3-SC fountain who want staged filtration and a supply of carbon and sponge replacements. Its model-specific fit, four-part filtration and stated carbon replacement schedule make it suited to maintaining that fountain.