UniHeat 72 Hour Shipping Warmer – Reliable 3-Day Heat Pack

72-Hour Consistent Heat: Delivers a steady heat supply for a full 3 days, providing necessary thermal protection for well-timed shipments and expedited transit windows where delivery timing is critical.
Safe for Live Arrivals: Unlike standard hand warmers that spike and drop quickly, UniHeat packs are designed for a gradual “slow-release” heat profile that won’t “cook” your plants or animals.
Simple Air Activation: No shaking or external heat required. Simply remove the pack from its outer plastic sleeve to begin the activation process.
Eco-Friendly & Non-Toxic: Contains environmentally safe ingredients that can be disposed of with your regular household trash after use.

Average Surface Temperature: Maintains a consistent surface temperature of approximately 100°F (38°C).
Heat Output: One pack can raise the temperature of a 1-cubic-foot insulated shipping box by 10°F–15°F.
Size: Approximately 4″ x 6″ – fits easily into most standard shipping containers.

Activate Early: Open the outer plastic bag 30–60 minutes before packing to allow the warmer to reach its initial operating temperature.
Ensure Airflow: The side with the red stripes contains the air-activation perforations. Never cover these holes with tape or place them directly against a flat, airtight surface.
Protect Your Cargo: Never place the heat pack in direct contact with live plants or animals. Wrap the pack in newsprint or a paper bag to create a buffer.

72 hour heat pack