This is a pack of three replacement foam filter guards designed specifically for the Current USA eFlux 660 GPH Wave Pumps. These guards serve a dual purpose: they protect your delicate aquarium inhabitants from the powerful intake of the wave pump and shield the pump's motor and impeller from being clogged or damaged by debris. By providing a physical barrier, these foam guards are a critical component for maintaining a safe and efficient reef aquarium environment. Each package includes three durable, aquarium-safe foam guards, ensuring you have spares on hand for routine maintenance and cleaning rotations. The guards are custom-molded for a perfect, secure fit onto the eFlux 660 GPH wave pump, guaranteeing optimal performance without impeding water flow. The porous foam material effectively screens out larger particulates, fish food, and small critters while being easy to remove, rinse, and replace during regular tank upkeep. These replacement filter guards are an indispensable accessory for any saltwater aquarist running Current USA eFlux 660 GPH wave pumps. They are especially vital for hobbyists keeping small fish, invertebrates like shrimp and snails, or mobile anemones that are at risk of being drawn into the pump. Investing in these guards is a simple and cost-effective measure to protect both your valuable livestock and your wave pump equipment, ensuring long-term operational health and peace of mind.