K&H Pet Products Thermo-Hose Ice Free Heated Water Hose PVC Red 60-Foot 250 Watts 5/8" double-wall PVC hose and solid brass couplings Thermostatically controlled to turn on and off as needed to keep your hose from freezing Turns itself off during warmer weather No need to drain hose between uses MET Listed NOT for use with RV's - Must be disconnected when water is not flowing