Imagine Gold Llc AIM77212 Bio 3 Cartridge Reg 12-Pack

These are great. Much cheaper than purchasing in the smaller packs. I ordered 2 boxes and one of them even came with a new frame. Good quality. I just wish they had more carbon in them, but none of them do.

These filters are a good system and easy to replace the filters. Far more inexpensive than some. Would recommend to anyone.

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I must have purchased the wrong size. I needed the "junior size", but I just cut the regular size into 3 parts and it fits just fine. Keeps my small salt water tank crystal clear.

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