Take charge of your fountain with the pond boss 435 GPH Low Water Auto Shut-Off Fountain Pump. This high-performance pump is ideal for use in small fountains with an ideal pumping height of 3-5 ft. The pond boss Low Water Auto Shut-Off line of pumps has sensor that detects when the water level in your fountain reaches below 1.5 in. and turns off the pump, preventing pump burnout. This energy efficient, ETL Listed pump uses ceramic shafts & bearings, resulting in a durable and efficient pump for your fountain. The pump's quiet operation allows you to enjoy the calming sounds of your fountain. The included adapter connects to tubing with a 1/2 in. I.D (Inner Diameter). When it is time to perform maintenance on the pump, no tools will be needed thanks to quick access to all moving parts. This pond boss Fountain Pump with Low Water Auto Shut-Off is supported by a 1-year warranty.