40 Hr. UniHeat Heat Pack

$2.00
In stock
SKU
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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