LUBERDUSH Cat Water Fountain Filter Set, 20 Pack for 309A/309B/309C, with Pre-Filter Sponges

LUBERDUSH replacement cat water fountain filters are designed to refresh water in compatible stainless steel fountains, with layered filter media and hair-catching pre-filter sponges.

• Compatible with wireless stainless steel fountain models 309A, 309B and 309C — match the filter to these fountain models.
• 20 pieces: 10 replacement filters and 10 pre-filter sponges — stock both parts needed for replacement.
• Activated charcoal, ion exchange resin and KDF, with double the filtering media — designed to help remove odors, soften water and improve taste.
• A pre-sponge layer traps hair and debris — helps keep these particles out of the fountain water.
• Replace the filter and sponge every 2–4 weeks — adjust the interval for water use and the number of pets.

Fountain filters need to suit the appliance and be replaced regularly to keep up with everyday use. This set is made for compatible LUBERDUSH-use fountain models, with separate filter and sponge pieces so both parts can be changed on a routine schedule.

Which fountains fit these replacement filters?

LUBERDUSH replacement filters fit wireless stainless steel pet water fountain models 309A, 309B and 309C, with a capacity of 108 fl oz (3.2 L). The model numbers are the key fit check: this set is made for those fountain models rather than a universal range of fountains.

• Compatible fountain models: 309A, 309B and 309C.
• Designed for the 108 fl oz (3.2 L) stainless steel pet fountain.

How does the filter system help keep fountain water cleaner?

The filter combines activated charcoal, ion exchange resin and KDF, and uses double the filtering media. These materials are intended to help remove odors, soften water and improve its taste. A separate pre-filter sponge catches hair and debris before they can pass further into the filtration system, supporting cleaner drinking water for pets.

• Three types of filter media: activated charcoal, ion exchange resin and KDF.
• Pre-filter sponges provide a layer for trapping hair and debris.

What is included, and how should I replace the parts?

Each set contains 10 replacement filters and 10 pre-filter sponges. Replace both the filter and sponge every 2–4 weeks, adjusting the timing to account for water use and how many pets use the fountain. Regularly clean the pump to help maintain its efficiency.

Before using a new filter, soak it in water for 1–2 minutes and rinse it thoroughly under running water. This preparation helps remove residual coconut activated charcoal dust before the filter goes into the fountain.

• Soak each filter for 1–2 minutes, then rinse under running water.
• Clean the pump regularly as part of fountain upkeep.

This replacement set suits pet owners using a compatible 309A, 309B or 309C fountain who want both filter parts on hand for scheduled changes. Its model-specific fit, paired filters and sponges, and clear preparation and replacement guidance make it a practical match for those fountains.