10 Best Water Fountain Filters Replacement Kit in the USA

Keeping your water fountain clean is essential for both pets and people. Fountain filters – often made of carbon and foam – remove hair, debris, bad tastes and odors from circulating water. In fact, the same activated-carbon technology used in human drinking fountains and water coolers to strip chlorine and odor from water is used in pet fountains. Replacing filters regularly (usually every 2–4 weeks) ensures fresh, clean water. Below we explain what to look for in a filter and then review the 10 best water fountain filters replacement kits available in the USA.

Why Use Replacement Filters for Your Fountain

Pet water fountains (and even some decorative drinking fountains) have built-in filtration systems. Typically, each filter unit includes:

Activated carbon layers: These carbon blocks (often made from coconut shells) adsorb odors, chlorine and contaminants.
Ion-exchange resin: Some filters add resin to soften water by removing calcium or other minerals.
Foam or mesh pre-filter: An outer cotton or foam layer traps pet hair, dust and sediment before it reaches the carbon.
For example, PetSafe’s Ion-X dual filters combine activated carbon and ion resin to “remove any bad tastes and odors while keeping the water soft”. Catit’s Triple-Action filters explicitly combine carbon, ion resin, and mesh to clean water and prevent urinary issues. Likewise, PetSafe’s Drinkwell Premium filters use a dual-density pad plus coconut-shell carbon to catch hair and eliminate odors.

Over time these filter elements become saturated. Fresh filters are needed to keep water fresh. Experts generally recommend changing pet fountain filters every 2–4 weeks. (Busy fountains or heavy use may need more frequent changes.) Failing to replace filters can let taste/odor problems return and allow debris to accumulate in the fountain. As PetSafe notes, “replace the carbon filter when you clean your pet’s fountain; each filter provides 2–4 weeks of filtration”.

How We Chose the Best Water Fountain Filters Replacement

We looked for kits that include genuine, multi-layer filters designed for popular fountains (Catit, PetSafe Drinkwell, NICREW, etc.). Important factors included: filtration quality (carbon/resin content), compatibility with major fountain models, pack size (months of supply), and value. Many top kits bundle carbon filters with extra foam sponges for pre-filtering (boosting debris removal). Wherever possible, we cite manufacturer specs and usage tips (e.g. recommended replace interval) to ensure quality and accuracy.

With that in mind, here are our top picks for water fountain filter replacement kits in the USA. Each entry lists the filter type, key features, and ideal fountain compatibility water fountain filters replacement.

1. PetSafe Drinkwell Premium Carbon Filters (12-Pack)

PetSafe’s Drinkwell Premium Replacement Carbon Filters are designed for all Drinkwell® pet fountains (Outdoor Dog, Everflow, Multi-Tier, Original, Platinum, Zen and Mini models). This 12-pack of carbon filters uses 6 separate carbon chambers inside each filter to prevent clogging and ensure thorough filtering. According to PetSafe, the dual-density pad “catches pet hair and debris” while the coconut-shell carbon “helps remove bad tastes and odors” from the water. Each carbon filter lasts about 2–4 weeks, so a 12-pack gives roughly 3–4 months of supply for most homes water fountain filters replacement.

Key Features: 12 carbon filters (6-compartment design) compatible with multiple Drinkwell fountain series. Dual-layer pad pre-filters debris; activated carbon (coconut) removes odors.
Usage: Replace every 2–4 weeks for best results.
Capacity: Pack of 12 filters (enough for ~3–4 months) with subscription options for auto-reorder.

2. PetSafe Ion-X Dual Filtration Filters (4-Pack)

For PetSafe’s Outlast and Viva fountains, the Ion-X Dual Filtration Filters (4-pack) offer a two-step cleaning system. Each filter contains both activated carbon and an ion-exchange resin. PetSafe explains this “dual filtration system” “removes any bad tastes and odors while keeping the water soft”. A BPA-free plastic pre-filter at the base also traps larger debris (pet hair, lint) to protect the carbon layer. These official filters are guaranteed to fit PetSafe fountains and provide up to 4 months of use per pack (they last ~2–4 weeks each).

Key Features: 4-pack of dual-layer filters; each combines coconut-shell carbon + ion-exchange resin. BPA-free pre-filter traps hair/debris.
Usage: Change every 2–4 weeks; 4-pack covers about 4 months total water fountain filters replacement.
Compatibility: Fits PetSafe Outlast Cat Fountain, Viva Pet Fountain, and select Drinkwell models.

3. Premier Pet (AquaFountain) Replacement Carbon Filters (4-Pack)

The Premier Pet Replacement Carbon Filters (also sold under the AquaFountain brand) are compatible with Premier/AquaFountain models. Each pack contains 4 carbon filters, with Premier recommending a new filter every 2–4 weeks for optimal freshness. These filters use activated carbon (made from coconut shells) to remove chlorine, odors and impurities. In fact, the manufacturer notes they “remove bad tastes and odors” providing filtered water for pets. A 4-pack provides a 3–4 month supply, making it a convenient replacement set water fountain filters replacement.

Key Features: Pack of 4 carbon filters for Premier/AquaFountain pet fountains. High-grade coconut-shell activated carbon (removes tastes/odors) water fountain filters replacement.
Usage: Replace every 2–4 weeks (depending on usage).
Compatibility: Fits Premier Pet® and AquaFountain® models (including AquaFountain II, Pet’s Dream, etc.).

4. Catit Triple Action Filters (2/5/12-Pack)

Catit Triple-Action Fountain Filters are the OEM replacements for Catit Flower Series fountains (the iconic multi-tiered cat fountains). Each filter delivers three-in-one filtration: an activated carbon core removes odors and impurities, an ion-exchange resin softens water, and a fine mesh catches hair and sediment. This design “provides clean and odor-free drinking water directly from the Catit Flower Fountain”. Catit offers these in packs of 2, 5 or 12 filters. Pet owners report that Catit’s carbon filters greatly improve water taste, and the resin layer may help prevent urinary issues in cat water fountain filters replacement.

Key Features: 3-stage filtration (carbon + ion resin + mesh) for Flower fountains. Carbon element removes odors; resin softens water; mesh pre-filter traps debris.
Usage: Change filters every 4–6 weeks (or per Catit’s guidance) to keep water fresh water fountain filters replacement.
Compatibility: Fits Catit Flower fountains (all sizes except Flower Fountain Mini). Catit’s official filter pack (usually sold in sets of 2, 5 or 12).

5. NICREW Sol Water Fountain Filters (4-Pack)

The NICREW Sol replacement filters are a 4-pack designed for the NICREW Sol pet fountain (and similar 2.5–3L fountains). Each filter has a layered structure: an outer cotton (nonwoven) layer to catch hair and large particles, an inner activated-carbon core to remove odors, plus ion-exchange resin in some models. (This is similar to other brand filters.) Although no official spec page is available, NICREW’s packaging notes “high density cotton, activated carbon and ion filtering resin” in each filter. Owners find these filters easy to swap and effective at keeping fountain water clean water fountain filters replacement.

Key Features: 4 individually packaged filters with cotton pre-filter and activated carbon core water fountain filters replacement.
Usage: Rinse before first use; replace every 2–4 weeks depending on use.
Compatibility: Fits NICREW Sol Pet Fountain (2L capacity) and possibly other fountains with ~4.9–5″ round filters.

6. iPettie Flower & Neverland Carbon Filters (4-Pack)

The iPettie Carbon Filters (4-Pack) are made for iPettie’s own Flower and Neverland stainless-steel fountains. Each filter is a carbon block designed to clean water for up to 2–4 weeks. iPettie explicitly recommends replacing them “every 2 to 4 weeks for better water quality” and soaking each new filter for 30 seconds before use. These filters are basic but effective: they absorb odors and chlorine, keeping the fountain water fresh water fountain filters replacement.

Key Features: 4 activated-carbon filters for iPettie Flower and Neverland fountains.
Usage: Soak then insert; change every 2–4 weeks as per iPettie’s guideline.
Compatibility: Fits iPettie Flower Stainless Steel and Neverland automatic pet fountains.

7. Nispira / Generic Veken Fountain Filters (6 or 12-Pack)

These generic carbon replacement filters (often sold under brands like Nispira or “Pet Standard” on Walmart) are for large-capacity cat fountains (e.g. 2.5–4.5L models). They typically come 6–12 to a pack and fit Veken, Rellaty, or similar glass/ceramic fountains. For example, Nispira’s filters use food-grade activated carbon to remove bad tastes and odors, while an ion-exchange layer removes impurities. The maker highlights “50% more carbon than generic brands for better…filtration” and recommends changing them every 2–4 weeks to keep water fresh water fountain filters replacement.

Key Features: 6- or 12-pack activated carbon filters for large pet fountains. Food-grade charcoal removes odor; ion resin (in some kits) removes dissolved contaminants. Enhanced carbon content (50% more than average).
Usage: Replace each filter about every 2–4 weeks.
Compatibility: Fits 67–135 oz (2–4 L) Cat/Dog fountains (Veken and many generic glass/pet fountains).

8. BEMOONY Cat Fountain Filters (12+12 Pack)

The BEMOONY Replacement Kit is a very large bundle often sold on marketplaces. A typical BEMOONY kit includes 12 carbon filters and 12 foam sponges (or similar counts). The activated carbon elements function like the others – adsorbing odor and chlorine – while the black foam sponges act as pre-filters to catch hair and particles. (As one listing notes, “the carbon filter is replaced every 2–4 weeks, which can meet the use needs of 3–4 months” of fresh water.) Although we lack an official site, user reviews confirm that foam+carbon kits greatly extend filter life by blocking debris before it clogs the carbon water fountain filters replacement.

Key Features: Combo pack with carbon filters + matching foam pre-filters. Extra sponges help trap debris water fountain filters replacement.
Usage: Replace carbon filters every 2–4 weeks; change foam sponges as they dirty water fountain filters replacement.
Compatibility: Many BEMOONY kits fit popular pet fountains (typically 2–3 L models). Always check diameter (about 5″).

9. Outus / Other Multi-Pack Filter Sets (8–16 Pack)

Brands like Outus, DEEIPET, Outu, etc., sell generic 8–16–pack filter kits for mid-sized fountains. They usually bundle 8 or more filters (sometimes with a handful of extra sponges). These filters are generally made of cotton layers and carbon blocks. For instance, the “Outus 8 Pack” cites similar usage: soak 30s before use and replace every ~2–4 weeks. Other sellers emphasize that the foam/sponge pre-filter removes large particles, prolonging carbon life. Though not tied to a specific brand fountain, these multi-packs are budget-friendly for bulk replacement water fountain filters replacement.

Key Features: Larger quantity packs (e.g. 8, 12, or 16 carbon filters) often with extra foam sponges. Similar multi-layer design (cotton outer layer + activated carbon).
Usage: Rinse filters before use; swap filters every few weeks.
Compatibility: Designed to fit many ceramic or stainless pet fountains using 4.9–5.0″ round filters.

10. PETLIBRO Capsule Fountain Filters (8-Pack)

The PETLIBRO Capsule Replacement Filters (8-pack) are made for the PETLIBRO Capsule fountain (a modern cylindrical pet fountain). Each filter features a 4-layer design (non-woven fabric + medical stone + ion resin + activated carbon) to remove odors and hair (from BestBuy image text). Users say the PETLIBRO filters “keep the water very clean” and are easy to replace. Though we couldn’t cite the official description, Best Buy notes these filters fit Capsule fountains and are an exact OEM replacement (9 reviews with 5 stars).

Key Features: 8 filters for Petlibro Capsule Pet Fountain. Multi-layer media (pre-filter + carbon+resin) water fountain filters replacement.
Usage: Replace about every 2–3 weeks; soak before first use water fountain filters replacement.
Compatibility: Only for Petlibro Capsule (71 oz fountain). (Unofficial kits like VinDox or generic alternatives also fit this model.)

Frequently Asked Questions

Q: How often should I change my water fountain’s filter?
A: Most manufacturers recommend replacing carbon filters every 2–4 weeks. In practice, change filters when the water flow slows or if you detect any taste/odor. If multiple pets drink from one fountain, you may need to replace filters even more often.

Q: What do fountain filters actually do?
A: Water fountain filters use multi-layer media to clean the water. Activated carbon removes chlorine, bad tastes and odors. Ion-exchange resin (in some filters) helps soften hard tap water and remove heavy metals. A pre-filter foam or mesh layer traps pet hair, food bits and debris. Together, these layers keep the fountain water fresh, odor-free and clear for your pet water fountain filters replacement.

Q: Can I use regular water filters for my pet fountain?
A: Generally, use filters designed for fountain flow. Pet fountain filters have a large hole in the center to fit the pump intake, and often use coconut-shell carbon safe for pets. However, any quality charcoal filter (approved for drinking water) would technically be safe for cats or dogs. (As one owner noted, human drinking filters are “approved for humans” and thus fine for cats.) Just be sure to cut out or remove anything unsuitable for pets (like small parts) water fountain filters replacement.

Q: How do I install a replacement filter?
A: Rinse new filters under tap water for a few seconds before use (this removes dust). Insert the carbon filter into its slot in the fountain according to the manufacturer’s instructions. If foam sponges are included, place them over the pump inlet or around the filter as directed. Then refill the fountain and power it on. Most filters start working right away, so your pet will have clean water immediately.

Q: Why is my fountain water still dirty after changing the filter?
A: Check for clogs or biofilm. Even with a new filter, the fountain and pump should be cleaned regularly (at least weekly) to remove algae and slime. Also confirm the filter is installed correctly. Using pre-filter sponges (which often come with filter kits) helps catch large debris before it exits the filter. If problems persist, ensure you’re using the correct filter model for your fountain water fountain filters replacement.

Q: Do filtered drinking fountains remove bacteria?
A: Carbon filters remove chemicals and trap particulates, but they do not sterilize water. Regular cleaning is still needed to prevent microbial growth. For reference, water cooler filters for humans (like the Matrix X) similarly remove chlorine taste but recommend periodic sanitation. Always wash fountain parts weekly and replace filters on schedule to keep water hygienic water fountain filters replacement.

Sources:

Our recommendations are based on product specifications and guidance from manufacturers. For example, PetSafe and Premier (AquaFountain) detail filter lifespans and materials. We also reference usage tips from brands like iPettie and Catit. These sources help ensure the information above is accurate and up-to-date water fountain filters replacement.