This De-icer is designed to float in the water tank and is thermostatically controlled with an automatic shut-off.
The Styrofoam float is completely enclosed within a rugged plastic housing.
The cord exits from the top of the unit. This gives the heater added stability and it is less likely to tip the tank.
Patented.

#521G 7521 with 88R Guards
#P7521 Same as 7521 with 15'
cord for use in ponds
#7621 1000 watts, 120 volts
#621G 57621 with 88R Guard
#P7621 Same as 7621 with 15'
cord for use in ponds

#7521 1500 watts, 120 volts

This Guard may be used with either the Floating De-Icer or Sinking De-Icer, and is specifically designed to protect a plastic tank. The guard is made of galvanized wire, and is assembled without the use of welding. The end result is a much stronger Guard which is less effected by rust and corrosion.
Patent pending.

#88R For rubber, plastic or structural foam tanks

This Sinking De-icer will sink to the bottom of the tank, and is thermostatically controlled with an automatic shut-off.
Since it operates at the bottom of the tank, it is less likely to be disturbed by livestock.
Each unit comes with a galvanized wire Guard/Stand (for more information see #88R above).
With the guard in place, the Sinking De-icer may be used in plastic tanks.
Patented.

#15N 1500 watts, 120 volts
#P15N Same as 15N with 15'
cord for use in ponds
#10N 1000 watts, 120 volts