This is a fish tank heating bar. Made of high quality stainless steel material, sturdy. Double-metal silver-plated contact temperature control, internal fixed temperature setting process, strong temperature sensitivity, small temperature error. Double-layer waterproof protection, full submersible design, can accurately maintain the set temperature. The maximum immersible depth IS 120cm, suitable for fresh water use. Specification: Condition: Brand new Material: Stainless steel Color: As picture shows Temperature range: 18-34 degrees Size: Approx. Type Bar length(cm/in) Wire length(cm/in) Capacity(L) 50W 20.5/8.1 113/44.5 50-100 100W 23.3/9.2 113/44.5 75-150 200W 28.2/11.1 113/44.5 100-200 300W 32.5/12.8 113/44.5 200-300 500W 37.2/14.6 113/44.5 300-400 Package list:1 * Heating Bar Note: 1. When cleaning the heating rod, please turn off the power 15-20 minutes in advance to avoid burns. 2.Please do not use other solvent liquid for cleaning. 3.This stainless steel heating rod is only suitable for fresh water. The heating rod must be completely immersed in water.