This sturdy pond skimmer is made of heavy, molded plastic polymer. The structure resists warping, will not bend and is big enough for large submersible pumps. A thick, nonskid cover has security lock nuts. A large, internal leaf basket traps large floating debris before it settles on the bottom. An integrated filter mat with removable frame provides finer filtration. A unique one click locking weir allows isolation of the pump for cleaning and winterization. Faceplates (required) sold separately below, order size by pump or pond size. Pumps are not included. Five year warranty.