Nasco Whirl-Pak Sampling Bags
Clear 4 oz, 500 Count Box

Whirl-Pak® 4 oz. Clear Sterile Sample Bags – Pack of 500 | FDA & USDA Approved Sterile. Simple. Secure Sampling.

Upgrade your sampling process with the trusted performance of Whirl-Pak® 4 oz. Clear Sterile Sample Bags. Designed for safe, contamination-free sampling, these polyethylene bags are FDA and USDA approved for food contact and are ideal for lab work, field testing, environmental sampling, and industrial quality control. Whether you're collecting liquids, solids, or semi-solids, each bag offers superior clarity, strength, and sealing security in a lightweight, compact form...

These bags feature Whirl-Pak’s patented puncture-proof wire tabs, ensuring a leak-resistant seal and safe handling without risk of bag tears or punctures. The 2.25 mil thickness provides durability while remaining flexible enough for easy folding and labeling. Bags are individually sterilized, clearly marked for easy identification, and come pre-sealed for immediate use—no extra prep needed...

Key Features

• Guaranteed Sterile: Sealed and pre-sterilized for contamination-free sampling
• FDA & USDA Approved: Safe for direct food and beverage contact
• Multi-Purpose Use: Great for liquids, solids, semi-solids, powders, and more
• Puncture-Proof Tabs: Prevent tears, leaks, and injuries during transport
• Crystal Clear: Transparent design for quick sample inspection and labeling
• Quick & Easy to Use: Tear, open tabs, insert sample, whirl shut, and fold

Additional Product Information

When accuracy, cleanliness, and reliability matter, Whirl-Pak® sterile sample bags deliver. Trusted by professionals across food safety, environmental testing, medical labs, and research facilities, these 4 oz. bags help you collect and preserve samples with zero compromise. The patented wire closure system makes sealing fast and intuitive—just whirl shut and fold the tabs for a secure, leakproof seal...

Their compact size makes them ideal for on-site collection or confined storage, while their rugged 2.25-mil polyethylene construction stands up to handling, freezing, and transport. Each bag is vacuum-packed and sterilized, ready to open and use without any additional cleaning or prep. Whether you're storing juice samples, soil, spices, chemicals, or biological specimens, Whirl-Pak® keeps your data and samples clean and safe...

Perfect for labs, production lines, classrooms, farms, or fieldwork—these bags deliver top-tier performance in every setting...

Technical Data

• Product: Whirl-Pak® 4 oz. Clear Sterile Sample Bags
• Capacity: 4 oz. (118 mL)
• Dimensions: 3" W x 7 1/4" L
• Material: High-clarity polyethylene
• Thickness: 2.25 mil
• Sterility: Guaranteed sterile, pre-sealed
• Closure: Puncture-proof wire tab with whirl-seal design
• Quantity per Box: 500 bags
• Color: Clear

Ideal Applications

• Food & beverage safety sampling
• Environmental field research
• Medical and lab specimen collection
• Industrial and manufacturing QA/QC
• Agricultural testing and education