The Aquascape Compact Fill Valve is a reliable addition to your pond, waterfall, or fountain. This small valve automatically adds water as needed and has a flow rate of up to 1.5 gallons per minute, reliably maintaining your water feature's ecosystem. It is designed for easy installation, compatible with a standard garden hose, ¼" and ½" poly pipe, and ½" PVC pipe. Free yourself from manual filling and enjoy a healthier, maintained water feature.