Elive 25W Micro Heater, 5 Gallon, Fully Submersible, Small Aquarium, Fish Tank, Fish Bowl, with Suction Cups Sturdy Design: The fully submersible heater is made of shatter proof thermoplastic For Any Bowl Type: Our heater works and stays sealed in both salt or fresh water. Easy Setup: Just plug it in and youre ready to go. The temperature is controlled automatically. Safe Fish: To protect your fish the heater has a built in safety switch for protection. Limited Lifetime Warranty: Elive warrants this product to the original purchaser against defective material and workmanship that occurs during normal use for the life of the product. <span class="a-text-bold">Shatterproof, </span>thermal plastic design Compact size, designed for bowls and small aquariums Fully submersible Thermal safety switch for dry-run protection 10W heats up to a 3-gallon aquairum 25W heats up to a 5-gallon aquarium