Penn-Plax 25W Plastic Safe Aquarium Heater, 6-in

Designed with safety and durability in mind, the Penn-Plax 25W Plastic Safe Aquarium Heater accurately maintains a desired temperature of 77 degrees, which is ideal for most aquatic environments. It is fully submersible, and it can be placed horizontally or vertically with two suction cups for easy, secure placement in your tank. Plus, it‚Äôs easy to install‚Äîjust plug it in and the heater will safely and efficiently bring the water to temperature. Made with superior insulation, it provides even heat distribution over the entire element. Features an automatic safety shut-off that cuts power to the unit if it is exposed to air. Fin-tastic for use in 5 ‚Äì 8 gallon tanks! This is also great for use with aquatic turtles and aquatic amphibians.