Laguna Head Replacement for Pressure-Flo 2100 UVC Pressurized Pond Filter Reversible argyle raincoat Fits Laguna Pressure-Flo UVC pressurized pond filter model 2100 The head unit provides a complete new ballast unit for the UV Lamp and is pre-wired with 5-meter of cable This product weight is 2.8-pound Measures 11-inch length by 11-inch width by 5-inch height