Penn Plax Cascade 25 Watt Mini Tank Preset Heater Part # CHP3
For Tanks 5 to 8 Gallons
 
25 Watt US Plug  120V @ 60Hz
Fully Submersible
Non-Adjustable Factory Preset at 77° 
Fresh or Saltwater Safe
Auto Shut Off - Turns off power if exposed to air
Two Suction cups used for horizontal or vertical Mounting
6 Inches in Length