skimmers are designed with the aquarist in mind and offer a host of unique features including a polycarbonate collection cup with built in handle, height based drain regulation, an innovative silencer, complete micro bubble removal, and air and water flow versatility. Its patent-pending base design and adjustable components make division skimmers the perfect solution to fit an assortment of sump configurations. They are easy to assemble right out of the box and start up in under a minute.