Marineland 24-Pack Penguin Rite Cartridge, Size C
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Serenity
> 3 dayThis is all Ive ever used and they work well!
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Charles Myers
> 3 dayNeed plenty of threse around. Have a large aquarium.
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Saskatchewan memaw
> 3 dayGood quality filters that replace Aqua tech #3 that are hard to find in my area.
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Karlitos
> 3 dayGreat bulk value!
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Linda W.
07-06-2025what else can I say....Its Marine Land
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Dan G
> 3 dayIt works as indicated. It is cheaper than my local pet store. I stock good for one year LOL! :D
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CT
> 3 dayI was very happy with the purchase. I use a lot of these filters, and this bulk package was a good price.
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Jimmy B
> 3 dayNice convenient way to keep your fishtank clean and healthy. Also not expensive through Amazon. The pet stores mark these way up.
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Vermonter Forever
Greater than one weekI ordered these late, two nights ago and they arrived today. Very pleased with how quickly I got them with the free shipping. I was very happy to pay the price on Amazon, compared to PetsMart they charge nearly $6 a filter. The only thing I dont like is, I bought the ($55) filter unit just three weeks ago for my 55 gallon fish tank and I have to put two filters in at once and they swell up when dirty. Tip: Make sure to face to the back to it doesnt jam the wheels. Looks like I will have to replace these filters every two weeks- 4 a month- very costly....so I wish they would last longer.
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Bon
Greater than one weekI use two of these at a time so buying them in bulk works just fine for me. They keep the water clearer that way.
