Polar Pack 8 oz., 4.1mil gel pack (6-1/2" x 3-1/2" x 3/4"). Reliable protection for shipping temperature-sensitive materials. Phase changes at +32°F (0°C). Reusable, returns to gel state on thawing. Barrier thickness: 4.1mil. 72 per case.
Quantity Price Break Increments: 5, 10.