The NemProtect MP60WQD Guard is a specialized safety device designed to protect your saltwater aquarium inhabitants from the hazards of powerheads and wave makers. Made from durable marine-safe PETG material, these guards prevent anemones and other small tank mates from being sucked into or getting stuck inside the equipment. Unlike traditional foam covers that clog easily and require frequent cleaning, the MP60WQD Guard features a unique safe zone design that allows for unobstructed water flow while still providing protection. Installation is straightforward; simply remove the wet side of your wave maker from the tank, clean it thoroughly, and then slide the guard onto the device until it clicks into place before reinstalling it back in the aquarium.