Designed for a reliable and steady release for 72 hrs. Produces an average temperature of 70 degrees in a 1 cu. ft. box.
Please check your local weather forecast before placing your order. If your local weather is below 40 degrees at night, I would recommend you add a heat pack.
PLEASE NOTE: This 72-hrs heat pack is not a guarantee, the seller is not responsible for plants due to frost damage or package delay. The 72-hrs heat pack can be used only in priority shipping. If you wish to add a heat pack you must add the USPS Priority Mail Upgrade.
