KKYG Adjustable Submersible Aquarium Heater with External Temperature Controller - Fish Tank Heater with/without Protective Cover for Tropical Fish, Saltwater & Freshwater Tanks - Perfect for Home, Office & Aquarium Shops

You will need an aquarium heater to keep your tank in a steady and controlled temperature, as proper temperature range is very important to fish and other Aquatic in winter. Our aquarium heater help your fish and other aquatic keeping away from stress and diseases by providing proper temperature. Features 1, The aquarium heater is operating as a staged heating, once achieved the setting temperature, it will stop heating for a while, and then continue working to maintain the temperature. 2, Easy to set and adjust to the setting temperature with the use of the temperature adjustment knob, offers simple installation. 3,Strong suction cup TIGHTLY FIX the heater to the tank. Notices 1, Before powering, make sure the heater is completely submerged in the water. 2, Before removing the heater out from the water, make sure the heater is unplugged to avoid dry heating. 3, Please NOT put the aquarium heater into the sand as this will cause INACCURATE heating. Size: Without protective cover - 25W-18CM,50W-18CM,100W-21CM,200W-27.5CM,300W-31CM,500W-37.5CM With protective cover - 50W-16.5CM,100W-16.5CM,200W-21.5CM,300W-27.5CM,500W-32.5CM Package contains ·1 x heater with 1 x suckers Precautions: Delivery Time 15-20 days.Please contact us if you cannot receive the order after 30 days. If you have any questions, you can get in touch with us by email, we will give you a satisfactory answer within 24 hours; We have a variety of styles of Aquarium Heater. If you have time, welcome to our shop to buy, we will do our best to serve you.

Nickel-chromium heating wire, which quickly collects heat and has better electrical conductivity.

EXPLOSION PROOF: 1.5 mm extra thick Quartz Glass is shatterproof, shatter resistant & more durable than conventional glass heaters

FULLY SUBMERSIBLE: IP68 Double impermeable sealed technology prevents electricity leakage,Plastic protective sleeve is scald-preventing for your pets and safe operation for you, The Strong suction cup clamps TIGHTLY FIX the heater to the tank easily

PROTECTIVE ENCLOSURE: Curious fish will eat fish food with hot rods, which will inevitably burn. This heating rod comes with a protective cover to make the fish safer.

Voltage freq: We recommend to position it near a strong water flow, the outlet of a power filter is ideal, so that the whole aquarium are in the same temperature. Attention：DO NOT power on until the heater is completely submerged in the water.