Protect your holding tank from freezing in cold temperatures. All tank heaters are thermostatically controlled. They turn “on” when the outside temperature is 44° F and turn “off” at 64° F. All heaters have an easy to apply molecular bonding adhesive that adheres to any clean surface. 13.5VDC & 120VAC (Dual Voltage, Dual Element)

Dimensions: 12" x 24"