Replacement Magnetic Support (original) for the Rossmont Mover M-Series circulation pumps. This low-profile magnetic support can be positioned anywhere in your aquarium. It accommodates glass up to 0.6" (15 mm) thick, and features an articulating ball joint that enables you to direct your pump's output in any direction. Keeps your pump planted firmly in place and helps reduce the transmission of operational vibrations. Compatible with all Mover M-Series circulation pumps. Includes dry-side and wet-side magnets. Supports for thicker glass - 3/4" and 1" - are also available (sold separately).