🐟Perfect Compatibility for Aquarium Filter: Our ammonia/carbon/phosphate reducer filer pads are very suitable for Quietflow LED PRO aquarium power filter 10 on the market. And the dimension of our filter pads is 2.75 x 0.7 x 0.7 inches. It contains 12 count filters cartridges, you can replace approximately every 4 to 6 weeks. Use this minipad in addition to the main filter cartridge can keep your water healthy..🐠Strong Purification Effect: Our ammonia reducer filer pads can remove excess harmful or toxi c ammonia while trapping excess waste, food and other organic debris, carbon reducer filer pads can remove pollutants and organic debris that discolor water and phosphate remover pads help to remove excess phosphate, while also trapping excess particulates from the water, so as to keep the water source clean and the healthy growth of fish or turtle..🐋Pre-cut for Easy Installation: The filer pads are pre-cut for easy and quick installation, or for quick replacement. Changing old and filthy filter pads takes less than 3 minutes, thereby improving time efficiency and doesn’t affect the overall water quality.【Kindly tip: For best performance, rinse before putting in the aquarium filter.】.🐢Long-term Replacement of the Aquarium Filter: According to the test, the filter cartridge has already withstood too much sundries for no more than four weeks, so you need to replace it with a new one to keep the water source healthy and clean at all times..🐡High-quality After-sales Service: HiTauing produces high-quality filter cartridges for fish tank, and is in a leading position in the quality and craftsmanship of all our products. We maintain a thorough quality control process to ensure compatibility with QuietFlow models. If you have any questions, please feel free to contact us!