GCRX-55 - AO Smith GCRX-55 - 55 Gallon ProLine High Recovery 6 Yr Warranty Residential Water Heater (Nat Gas)
Amazon.com: SZELAM Aquarium Heaters 300W Submersible Fish Tank Heater 55 Gallon, Anti-Dry Burning and Anti-Overheating, Explosion-Proof Fast Heating Fish Heater for Freshwater and Saltwater Aquarium Tank Heater : Pet Supplies
Tetra 40-55 Submersible Heater | Petco
Tetra 55-Gallon Starter Aquarium With Net, Food, Filter,, 48% OFF
55-Gallon Drum Heater Kit w/Controller - Class 1 Div. 1
BAND DRUM HEATER | 55 GALLON DRUMS - SprayEZ - Spray Equipment and Coatings
Amazon.com: FISH BREATH Aquarium Heater 50W/100W/200W/300W/500W for 5-90 Gallon, Submersible Fish Tank Heater with Adjustable Temperature Knob Be Suitable for Saltwater and Fresh Water : Pet Supplies
PDH55120-9 Silicone Rubber 55 Gallon Plastic Drum Heater 9.5 Inch Wide - Basco USA
Drum Induction Heater - fits to 55 gallon drums or smaller ones - Thermosafe Type A - 2750 Watt