Great Lakes Hornworm has updated their website effect 5/22/2020. Same great company, fresh new look!

40 hour UniHeat heat packs


Regular price $1.10

40 Hour: 1-9 ct. $1.10
40 Hour: 10 ct. $11.50
40 Hour: 30 ct. $29.00
40 Hour: 240 ct. $165.00
  • Activate within the first hour of opening the package, typically within the first 30 minutes.
  • Peak temperature achieved approximately 18 hours after opening.
  • Most popular heat pack for shipping reptiles, amphibians, and insects overnight.
  • Not recommended for 2nd day shipping.

Keeps your reptiles, amphibians and insects warm. These are for your own use. You do not need to add these to your shipments to keep your insects warm. We provide those with each shipment.