Industrial buyers and manufacturers seeking heavy-duty protection for tools, hardware, and products requiring reliable containment during storage and shipping. These 13 x 20" 4 mil flat poly bags deliver durability and puncture resistance while meeting FDA and USDA compliance standards, making them ideal for food-safe applications and regulated industries.

Best For
How to choose
Specs at a Glance
| Material | 100% Virgin Polyethylene (LDPE) |
| Dimensions | 13 x 20 inches |
| Thickness | 4 Mil |
| Color | Clear |
| Recyclable | Yes |
Common Use Cases
- Protecting tools and hardware during storage and transport Food product packaging and storage (FDA/USDA compliant) Industrial parts containment and organization Retail merchandise packaging and display Shipping lightweight to medium-weight products
What You'll Receive
- Case of 500 poly bags (13 x 20 inches, 4 mil) Access to compatible closure options (twist ties, bag tape, impulse sealers)
Shipping & Packaging
Frequently Asked Questions
These bags are compatible with three closure options: twist ties for quick, reusable sealing; bag tape for secure, permanent closure; or impulse sealers for high-volume operations requiring consistent, tamper-evident seals. Choose based on your production speed and security requirements.
Yes. These 4 mil poly bags meet FDA and USDA specifications, making them suitable for food storage, packaging, and transport. They're manufactured from virgin polyethylene, ensuring no contamination from recycled materials.
4 mil thickness provides puncture and tear resistance compared to thinner bags, reducing product damage and returns while maintaining cost-efficiency. This makes it ideal for heavy tools, hardware, and industrial products that require reliable protection without premium pricing.
Sold in cases of 500 bags, this bulk option significantly reduces per-unit costs compared to smaller quantities, making it ideal for high-volume industrial operations. Calculate your monthly usage to determine how many cases you'll need for consistent supply chain efficiency.
Technical Specifications
| Thickness | 4 Mil |
| Recyclable | Yes |
| Color | Clear |
| Strength / Material | 4 Mil |
| Dimensions (Internal) | 13" × 20" (L × W × H) |
Shipping Information
Outer Carton Dimensions
13" × 20" (L × W × H)
Unit of Measure
CASE
Qty Per Shipping Unit
500 PER CASE
LTL Freight Class
Class 60
Delivery Method
Shown at checkout
Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.
Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.
For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.
ORDER SUPPORT
Product Support
Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.
Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.
Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.
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13x20" 4 Mil Clear Flat Poly Bags - Heavy-Duty Protection, Case of 500
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Compare resources using the current product page data: SKU PB1231 , type Bags - Poly , sold-as unit CASE / pack count 500 PER CASE . Confirm the product page price, availability, and selected variant before ordering.
Compare width, length, mil thickness, closure, material, and case quantity.
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