40 Hr. UniHeat Heat Pack

In stock
Heat pack

40 hour UniHeat heat packs are the ideal packs for overnight frog shipping. 

40 hour UniHeat heat packs (shipping warmers) activate in approximately 40-50 minutes. They are slightly cooler than the 30 hour heat packs, and reach their peak temperature in approximately 15-18 hours making them the ideal packs for overnight frog shipping. Not recommended for 2nd day shipping.

Use when shipping temps will fall below 40F. Open package 1-2 hrs before boxing to activate. Place a barrier of bubble wrap or a frozen phase 22 pack between heatpack and frogs to avoid direct contact. 

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