SUBMERSIBLE HEATER HT30, The new, easy-to-use tetra ht10 and ht30 submersible heaters created especially for aquariums ranging from 10to 30 gallons, The electronic thermostat automatically adjusts heat output to keep the water at a constant 78 f, , UPC : 046798264460, Size : 30 GALLON, Length : 0, 666, Width : 0, 937, Height : 0, 666, Product Type : Aquatics - Heaters / Submersible, Shipping Dimensions: 0, 666x0, 937x0, 666 SKU: BC004238