Our Filter Systems

The price of a fountain includes your choice of one of three filter systems:
- the Drinkwell 360 filter system,
- the refillable Bio-Filter or
- the refillable Glass-Jar filter.

The Drinkwell 360 filter system is the easiest to use since you just pop one cartridge out and another in. We supply the filter housing and one cartridge; replacement cartridges are readily available online or in your local pet store.

Both our Bio Filter and the Glass-Jar filter are economical to refill, environmentally friendly, have a larger filtering surface and hold more carbon; they are similar in that they accept the same kind of aquarium carbon, which can even be composted after use. We supply the filter housing and a 30-day supply of aquarium charcoal pellets; the Acurel extreme pellets we use are readily available online. They are used for sensitive aquarium fish, so we know they are safe for our cats. From their website: "Acurel extreme activated carbon pellets is the most effective medium to clear aquariums of toxic organic substances, discoloration and foul odors. Proven in laboratory tests to be 3 times more effective than other carbons. Extreme carbon pellets are the professional's choice."

In comparison to the Bio Filter, where the carbon is in a heavy-duty aquarium “filter media bag”, with the Glass-Jar filter, the carbon is in a refillable clear glass jar. The Glass-Jar filter may not hold as much carbon as the Bio Filter, but it holds much more carbon than the 360 cartridge, so you know you’re getting superior filtering results.

We’ve been offering UV-lamps for several years now (UV rays kill bacteria and reduce the buildup of slime in the fountain); these can be purchased separately, but only for plug-in fountains (they cannot be battery-powered). 

The Drinkwell 360 filter system:

The filter housing is made of PVC Schedule 40 fittings used for potable water. The tubing is beverage grade antimicrobial vinyl tubing.

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EBI’s Bio Filter 2 with media bag:

The filter housing is made of PVC Schedule 40 fittings used for potable water. The tubing is beverage grade antimicrobial vinyl tubing.

The bag holds the carbon in place and eliminates carbon dust building. Fill it with 1/4 cup of activated carbon pellets. Rinse the filled bag outside the housing (before you put the bag into the filter housing).

Slip the bag into the filter housing, fold the rest of the bag down on top.

Put the seal-ring in place and close the cap.

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The refillable Glass-Jar filter:

The filter housing is a glass jar, the lid is food grade BPE-free polypropylene. The tubing is beverage grade antimicrobial vinyl tubing.

(This all comes preassembled with your fountain purchase:)

Begin by pushing the two tubes through the lid as shown in the picture; approximately 2 inches of the tube coming from the pump should be inside the jar and approximately ½ inch of the tube that will be attached to the spout.


Attach the white Polypropylene (PP)-diffuser to the tube coming from the pump (it should slip in about 1/2 inch.) This part prevents carbon pellets from clogging the pump and distributes the water evenly through the charcoal.

Next slide the tube with the diffuser through the hole in the black filter foam. Fill the jar with approx. 1/2 inch (10mm) of activated carbon pellets.
Screw the lid with filter foam onto the jar; there should be approx. a 1” space between carbon and foam for best filtering results!

Rinse the charcoal by holding the longer tube to your faucet for a minute while the water flushes through the filter and out the other tube.
Now you’re ready to attach the longer tube to your pump and the shorter tube to your spout.

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The germicidal UV-lamp:

Place the UV-lamp next to the wall of the bowl and always use the sieve cover for protection.
Always turn the UV light off before opening the fountain!!
The low-voltage germicidal ultraviolet lamp produces ultraviolet wavelengths that are lethal to microorganisms. Approximately 95% of the ultraviolet energy emitted is at 285 nanometers. This wavelength is in the region of maximum germicidal effectiveness and is highly lethal to virus, bacteria and mold spores. As a result, the microorganisms in the fountain bowl are deactivated, preventing them from reproducing and rendering them harmless.

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