This AquaFX piggyback membrane add-on kit is a reliable and high-quality solution for your aquarium filtration needs. With the ability to handle up to 100 gallons of water, this canister filter is perfect for all types of water and is manufactured in China. The filter location is external and it is a unit type. The brand behind this product is AquaFX, which is a leader in the reverse osmosis industry. This kit is a custom bundle that includes a piggyback membrane add-on, making it easy to improve your aquarium's water quality. Whether you have a large or small aquarium, this kit is the perfect solution for your filtration needs.