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Koller Products XS 6-Pack Filter Cartridges, Replacement Cartridge for Koller Products Fish Tanks

4.9 (8) Write Review
Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

1.Color:6-pack


2.Size:Xs


  • HIGH EFFICIENCY FILTERING - This fish tank filter cartridge is made of high efficiency filtering material, which can capture tiny particles and bacteria, providing all-around water protection and keeping you away from water pollution.
  • MULTI LAYER - The innovative 3-layer filtration design provides multiple protection. The primary cotton layer effectively captures large particles of impurities, the middle activated carbon purifies in depth, and the final cotton layer further filters fine particles to ensure optimal water quality.
  • ACTIVATED CARBON PURIFICATION - The filter cartridge is built-in high-quality activated carbon, every drop of water is thoroughly purified, removing odors and harmful substances, so that fish can enjoy a pure living environment as in the beginning. Keep the water quality stable and protect the health of fish.
  • Size Extra Small - Compatible with power filters for various aquarium sizes, including Koller Products 1.5-gallon, 2-gallon, and 3-gallon fish tanks. (Product may ship in white SIOC packaging depending on demographic region)
  • NO ASSEMBLY REQUIRED - Our filter cartridges for fish tank simply need to be rinsed with cold water to remove external dust and then placed completely into the filter chamber. Replace cartridge every 3 to 4 weeks or when filter flow is diminished.


Product Description

filter cartridges
Activated Carbon
3 layer filtration system
fish tank filters
filters cartridges

Suitable for most Koller fish tanks & power filters

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  • Our extra small cartridges are designed to fit the filters that come with Koller products 1.5/2/3/3.5 gallon fish tanks. Filter cartridge size: 3" x 2.2" (L x W). It is best to check compatibility with other brands of filters before purchasing.

  • Replace filter cartridge every 3 to 4 weeks or when heavily soiled.

  • Its function is to remove impurities and chemicals from the water, but it will not alter the pH of the water source. However, regularly monitoring the pH of the water is always a good habit to ensure that any changes remain within an acceptable range

  • Filter cartridges are widely used in aquariums as they resolve many water quality issues, removing organic waste and impurities including odors and discolorations that can develop overtime in the aquarium.


Tim
2025-08-26 17:23:49
Cheap and easy to use.
Tanja
2025-07-30 12:53:25
These fillers work great and keep my little tank very clean.
Lila Lasmono
2025-06-29 11:27:33
Easy install .. good quality .. perfect fitment .. low noise
Kathy
2025-03-27 18:04:58
For some reason these don’t seems to be as filled with charcoal as the ones I have purchased before.
Ashley
2025-03-26 17:19:46
I have a betta fish in a 3 gallon tank and only have to change the filter every few weeks/month
Susan T.
2025-03-20 17:47:31
Great filter !
darlene
2025-03-07 18:33:28
Will buy again!
Danielle1
2025-01-23 19:47:45
Generic filter and it fits perfect a little cheaper than the name brand one of top fin for my tank.