boxtech Aquarium Heater 50W, Submersible Fish Tank Thermostat Proof Explosion and Auto Digital Control, with Heat-Resistant Quartz Made for 5-15 Gallon
- Fish Tank Thermostat: 50W aquarium heaters suit for 3-15 Gallon fish tank. Please choose the right wattage aquarium heater according to our size chart
- Temperature Range is 68 ºF-90 ºF, when water temperature achieve the setting temperature, heater will automatically stop heating; when water temperature is lower than the setting temperature, heater will automatically start heating
- Explosion-proof: This fish tank heater is made of heat-resistant, milky white quartz glass and UL listed power cord that is shatterproof and explosion-proof to prevent leakage and lasts 3 years or more
- Installation for Tank Heater: Stick the submersible water heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically), Keep the aquarium heater fully submerged in water
- Notice: Before you clean the aquarium or change water, pls must cut off the heater power, after 10 minute cooling then take out the heater and regularly clean the scale on the heater