SUNSUN Hang On External Canister Filter is an all-in-one external hang-on canister filter for any freshwater or marine aquarium. This item includes all the parts, media, and accessories you need right out of the box. No extra parts needed. It is a three stage filtration system that removes debris and wastes for crystal clear water. This hang on filter feature smooth and ultra quiet operation. Made of good quality plastic material for durability.