This Auto Level Control is an accurate, easy to install device that will maintain water levels in fountains, ponds or water-holding tanks. It's simple and easy-to-adjust float valve assembly is accurate and maintenance-free. Constructed of durable high-impact plastic and sports a commercial grade, all-brass float assembly. The plumbing port is a standard 1/2" female slip. The equalizer lines are 1" or 1-1/2" female slip. The top access lid is available in white or black and can easily be painted any color.