LTWHOME Activated Carbon Filter Pads Fit for Eheim Professional Pro Pro3 2071 2073 2075 Ultra G65,G90(Pack of 6) Packing include: 6pcs actived carbon filters. Custom designed and manufactured for Eheim Pro 3 250, 250T, 350, 350T, 600/Ultra G Pro 3 filter 2071,2073,2075 and Eheim Pro 3e 350 /2074 filtration systems. Provides efficient water flow with less clogging for long lasting filtration. Enhances biological filtration. The more your purchase the best price you get.