Crystal 4.14

The Hydor Theo heater line features PTC patented thermal technology which makes it among the safest aquarium heater lines on the market. UL Listed by design, not by the use of accessories. Made from specially engineered shatterproof glass which, while...

The Oase HeatUp 50 Watt Aquarium Heater features uniform temperature level thanks to the patented bi-metal technology. 50 Watts Recommended for tanks up to 15 gallons Glass construction Fully submersible Suction cups and bracket for securing to...