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Your cart is empty.Koller Products replacement filter cartridge fits Koller Products aquariums and Hawkeye aquariums with power filters using filter cartridges size XS. Keeps water crystal-clear and fish healthy by removing organic pollutants and other fish waste. Comes with 3 ready-to-use replacement filters cartridges. Unique tab keeps hands from getting wet.
Bob
2025-08-09 15:01:35
Small and perfect and does a fantastic job
Debra Nelson
2025-08-07 21:23:17
These came just as described. Looked exactly like the ones I previously purchased at the pet store but for less money. Will absolutely buy again.
Customer
2025-08-04 17:59:46
I had used another brand in the past, but these filters work so much better and I think these are cheaper.
Mz. Pyscez
2025-07-13 09:17:32
Filter works for my 3 gallon tank.
DoubleP23
2025-07-05 17:41:03
Filter fits perfectly to my two gallon aquarium for my beta fish and keeps the water clean for 4-6 weeks. I change it after that for the fishes benefit but I’m sure it’s use can be stretched for a little bit longer.
Heather Shartle
2025-04-30 15:59:12
These filters are great, and the price is the best around! They work great and keep the tank looking clean.
R
2025-04-20 12:09:42
Box arrived crushed, and there’s no way to know if it’s a legitimate product because the box was just white with no branding
Hackert
2025-03-10 13:46:32
These filters are so easy to replace, they drop right in!!
shanelle
2025-02-06 10:42:34
Satisfied with this product :)
Rafael
2025-01-06 14:55:04
Cumple su funcion
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