ReptiTherm Under the Tank Heaters are an ideal 24 hour primary or secondary heat source for tropical or temperate reptilian species. All of Zoo Med's Under Tank Heaters are UL/cUL approved and contain a solid state nichrome heating element. These under tank heaters permanently adhere to your terrarium, forming a solid bond for optimum heat transfer. An economical secondary heat source. Sizing: 1-5 Gallon: 4" x 5" 10-20 Gallon: 6" x 8" 30-40 Gallon: 8" x 12" 50-60 Gallon: 8" x 18"
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