These 12" x 12" leakproof zipper locking bags are water-tight and air-tight for long-term handling and storage of specimens. Zipper locking 12-inch x 12-inch 3 mil Bitran Series S leakproof bags are manufactured using a patented process that uses durable 3-mil polyethylene, which remains flexible even when frozen. The poly provides an exceptional vapor barrier and odor control while eliminating leaks. These leakproof bags offers unprecedented safety and storage. Bitran 12in. x 12in. leakproof bags feature a double-track zipper that is airtight, easy to close, and appropriate for use as a primary container for most diagnostic specimens.

Manufactured from durable 3-mil EVOH (Ethylene-vinyl alcohol copolymer) material.
All of our 12" x 12" leakproof zipper locking bags meet FDA and USDA specifications for food contact.