Cure n' Carry is a portable field curing box that meets ASTM 31 for transporting four 4x8 cylinders to the lab. Closed, leak-free seams and a water-resistant coating, it holds heat from concrete hydration to protect specimens in winter. Water/ice maintain temperatures in summer. Lightweight and rugged, it can carry in excess of 40 lbs. Deslauriers. 800-743-4106.