Marina (3 of Each) Slim Filter Carbon Plus Ceramic Cartridges and Zeolite Plus Ceramic Cartridges

As described

Easy to install

These go with the 3rd filter system I tried... FINALLY found something that works.. water so clean now... low maintenance!

This is a great product. I should have purchased this before any other products

It’s a great deal

These are perfect for my small fish tank at work that I have about six Fish keeps it clean for approximately six weeks

Refills for the slim 20 filter, new set up and the 4 filters seem very efficient, fast water clearing and now maintaining a good water quality. Very satisfied. Nice to get an very quick and early delivery. Thanks.

Really like it

Work great. Keep water clean and clear. Good deal on how many there are in pack.

This is the first time weve used these filters and if they were not going to work we were going to give the fish away and be done with the aquarium however the filters work like magic!