Marineland 24-Pack Penguin Rite Cartridge, Size C

as advertised, delivered in a 4-box sealed package.

Exactly what I wanted

I use two of these at a time so buying them in bulk works just fine for me. They keep the water clearer that way.

Way cheaper than pet smart and does the same job.

excellent price

Good deal. But the black carbon was all over the inside of the shipping box.

I 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.

everything was in the package and the filters work great and was not damaged in shipping. I keep these in my cart all year around so when i eventually run out i can buy bulk more. DO NOT GO TO THE PET STORE!!! I PRICED THEM OUT AND YOU GET A CASE FOR FREE BUYING FROM AMAZON.

good price

awesome