Whirl-Pak Standard Bags - 18 oz. (532 ml) - Box of 500

Whirl-Pak Standard Bags are the industry-leading solution for secure sample collection and storage in laboratory, environmental, and food safety applications. These 18 oz. (532 ml) capacity bags feature the iconic wire tab closure system that creates a leak-proof, tamper-evident seal without the need for additional equipment. Ideal for microbiological sampling, water testing, food analysis, and pharmaceutical quality control, these bags are manufactured from virgin polyethylene to ensure sample integrity and eliminate contamination risks.

• Capacity: 18 oz. (532 ml) with dimensions suitable for a wide range of liquid and solid samples
• Patented wire tab closure provides secure, leak-proof seal that is tamper-evident
• Manufactured from FDA-compliant virgin polyethylene; free from additives and contaminants
• Sterile and certified for microbiological applications; gamma irradiated for sterility assurance
• Puncture-resistant construction withstands rigorous handling and transport conditions
• Convenient write-on strip for easy sample identification and traceability