These unique warmers were designed specially for shipping fish and corals. They are used worldwide by wholesalers and fish exporters. The UniHeat Tropical Fish Warmer will warm up and is ready to use within 3-5 minute of being exposed to the air, no kneading or shaking required. One heat pack will increase the temperature of a 1cu. ft. box by 20 degrees, for every additional heat pack that you use the temperature will raise an additional 10 degrees.
Ideal for shipping tropical fish, reptiles and inverts.
Provides numerous hours of heat.
Easy to use with color indicator and requires no kneading or shaking.
Produces an average temperature of 70°F in a standard 1cu. ft. shipping box.
Environmentally safe, disposable, and inner contents are biodegradable.