H.B.H. Enterprises AHH30026 Carbon Pad for Aquarium Filter, 10 by 18-Inch

Item was as described. shipping could have been faster, but was well within promised shipping time. using filter as a cheaper replacement for a pet drinking fountain, and so far seems to be working great!

Keeps my fishtanks clean and clear. A lot cheaper than your lfs. I use this in conjunction with other filter pads for my fresh and salt water tanks. It will save you money in the long run.

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I purchased this item to use in the Aspen pet Cool Flow Pet Fountain, Large, Black in place of the OEM filters, after hearing there were problems finding worms in that product. This is a great substitute.

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Received the filter in a timely manner for my new GE Microwave. I have no external vent so rely on the carbon filters. Cut one for the top to double that filter then cut one for the grease filter underneath. The item is thick so I tore it in half and it is held in easily above the grease filter. Yes it released some carbon that is imbedded in the mesh but now I will get at least a total of four filters for this low price. Do it yourself and save.

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I put a piece of this carbon on top of the mechanical sponge in a Hagen Elite Underwater Mini Filter, UL Listed and within 5 days, it reduced the ammonia level in my betta's tank by 1 ppm.

The description states that this is 1" in height, but it's 1/2 an inch. I think because it comes folded in half that they say it's 1".

ADDED 2/24/13:

I've started using this in my Marineland Penguin Biowheel filter in addition to the carbon that the filter comes with. I was finally able to get my balloon molly's tank ammonia level down by 0.25 ppm in less than a week.