- For aquariums up to 75 gallons
- 300 watts
- 12" long
- Easy view on/off light
The Penn Plax Cascade 300 Watt Submersible Heater is for Aquariums up to 75 Gallons. Automatically sets and maintains to your desired temperature, and is accurate to one degree. Some of the features of this submersible heater include: an easy view on/off light, dual suction cups with mounting clip and a temperature setting scale that is easily visible and accurate. The Cascade heater is constructed of heavy duty glass that is shock resistant. This is a top quality heating element with superior insulation and heat distribution, perfect for fresh and salt water aquariums.