Whirl-Pak® Sample Bags are industry-standard sterile sampling bags designed for secure collection, transport, and storage of liquid or solid samples in microbiological, environmental, food safety, and water testing applications.

Manufactured from high-clarity virgin polyethylene film, these bags provide excellent visibility of contents while maintaining strength and puncture resistance. A continuous perimeter seal ensures leakproof performance, while reinforced wire closure tabs allow fast, reliable sealing by folding and twisting the top closure.

Each bag is sterilized after manufacturing to preserve sample integrity and is suitable for freezing applications, including ultra-low temperatures down to liquid nitrogen conditions when handled carefully after freezing.

This 532 mL (18 oz) Whirl-Pak® bag is commonly used for routine microbiological sampling where sterility, durability, and ease of handling are critical.