12" x 14" 4 Mil Flat Poly Bags - 1,000/Case

SKU: 40F121400
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Our 4 Mil low-density polyethylene (LDPE) flat poly bags are built for heavy-duty applications, offering maximum protection for industrial parts, tools, hardware, food, and other heavyweight products. These extra-strong poly bags keep contents safe from dirt, dust, and moisture while providing high clarity for a professional look.

  • Best for heavy-duty packaging – Ideal for tools, industrial products, hardware, and bulky items.
  • Made from 4 Mil (.004”) low-density polyethylene (LDPE) for superior strength and clarity.
  • Seamless tubing construction – No side seals or slits that can rip.
  • Dispenser-packed poly bags – Sizes 36” wide and under come in packs of 100 for convenience and cleanliness.
  • Heat sealable open-top design – Seal with a heat sealer, tape, or twist tie.
  • Meets FDA & USDA approved – Certified safe for direct food contact.
  • 100% recyclable – Sustainable packaging made from 100% virgin raw materials.
  • Dimensions listed in inches – First number represents the bag opening (e.g., 12" x 18").

Please note: These bags are open-top and do not include a reclosable zipper. Manual sealing is required.

SPECIFICATIONS
Width12 in
Length14 in
Thickness4 Mil
ColorClear
MaterialLow Density Polyethylene (LDPE)
Weight44.8 lb
Unit TypeCase
Discount Plastic Bag SKU104625
Interplas SKUPB41214 (500 Count)
Uline SKUS-1808

Material

Low/Linear Low-Density Polyethylene (LDPE/LLDPE)

Sulfur-free, Amine-free, Silicone-free, Latex-free

BHT (Butylated Hydroxy Toluene) free

Chlorine-free, PVC-free

Temperature Range
20° – 150° F

Capacity
Not tested for weight capacity

Recycling
Recyclable #4

Usage Guidelines

Bottom-seal construction

Not treated for end-user printing

Not recommended for dry ice

Not microwave-safe; not for baking, cooking, or boiling

Do not store in sub-freezing temperatures

3–4 mil thickness recommended for trash compactor use

Water-resistant, not waterproof (see Leakproof Bags)

Not compatible with vacuum machines (see Vacuum Bags)

Specifications

Meets FDA 21 CFR 177.1520

Not UPS or Postal approved

Not cleanroom approved

Acid-free and archival safe

Free of GMOs, fungicides, and fumigants

MVTR (Moisture Vapor Transmission Rates) and OTR (Oxygen Transmission Rates) not available

Packaging
Bags are inner-packed in smaller quantities from the primary vendor (e.g., 10 packs of 100 per carton)

Product Name Add to Cart
2" x 3" 4 Mil Flat Poly Bags - 5,000/Case
3" x 3" 4 Mil Flat Poly Bags - 5,000/Case
2" x 4" 4 Mil Flat Poly Bags - 5,000/Case
2" x 5" 4 Mil Flat Poly Bags - 5,000/Case
2" x 6" 4 Mil Flat Poly Bags - 5,000/Case
2" x 7" 4 Mil Flat Poly Bags - 2,000/Case
2" x 8" 4 Mil Flat Poly Bags - 2,000/Case
2" x 9" 4 Mil Flat Poly Bags - 2,000/Case
2" x 12" 4 Mil Flat Poly Bags - 1,000/Case
3" x 4" 4 Mil Flat Poly Bags - 5,000/Case
3" x 5" 4 Mil Flat Poly Bags - 2,000/Case
3" x 6" 4 Mil Flat Poly Bags - 2,000/Case
3" x 8" 4 Mil Flat Poly Bags - 1,000/Case
3" x 10" 4 Mil Flat Poly Bags - 1,000/Case
3" x 12" 4 Mil Flat Poly Bags - 1,000/Case
4" x 4" 4 Mil Flat Poly Bags - 2,000/Case
4" x 5" 4 Mil Flat Poly Bags - 2,000/Case
4" x 6" 4 Mil Flat Poly Bags - 2,000/Case
4" x 8" 4 Mil Flat Poly Bags - 1,000/Case
4" x 10" 4 Mil Flat Poly Bags - 1,000/Case
4" x 12" 4 Mil Flat Poly Bags - 1,000/Case
4" x 15" 4 Mil Flat Poly Bags - 1,000/Case
4" x 18" 4 Mil Flat Poly Bags - 1,000/Case
4" x 24" 4 Mil Flat Poly Bags - 1,000/Case
5" x 5" 4 Mil Flat Poly Bags - 1,000/Case
5" x 7" 4 Mil Flat Poly Bags - 1,000/Case
5" x 8" 4 Mil Flat Poly Bags - 1,000/Case
5" x 10" 4 Mil Flat Poly Bags - 1,000/Case
5" x 12" 4 Mil Flat Poly Bags - 1,000/Case
5" x 15" 4 Mil Flat Poly Bags - 1,000/Case
5" x 20" 4 Mil Flat Poly Bags - 1,000/Case
5" x 24" 4 Mil Flat Poly Bags - 1,000/Case
6" x 6" 4 Mil Flat Poly Bags - 1,000/Case
6" x 8" 4 Mil Flat Poly Bags - 1,000/Case
6" x 9" 4 Mil Flat Poly Bags - 1,000/Case
6" x 10" 4 Mil Flat Poly Bags - 1,000/Case
6" x 12" 4 Mil Flat Poly Bags - 1,000/Case
6" x 15" 4 Mil Flat Poly Bags - 1,000/Case
6" x 18" 4 Mil Flat Poly Bags - 1,000/Case
6" x 20" 4 Mil Flat Poly Bags - 1,000/Case
7" x 9" 4 Mil Flat Poly Bags - 1,000/Case
7" x 10" 4 Mil Flat Poly Bags - 1,000/Case
7" x 12" 4 Mil Flat Poly Bags - 1,000/Case
7" x 15" 4 Mil Flat Poly Bags - 1,000/Case
7" x 18" 4 Mil Flat Poly Bags - 1,000/Case
7" x 24" 4 Mil Flat Poly Bags - 1,000/Case
8" x 8" 4 Mil Flat Poly Bags - 1,000/Case
8" x 10" 4 Mil Flat Poly Bags - 1,000/Case
8" x 12" 4 Mil Flat Poly Bags - 1,000/Case
8" x 18" 4 Mil Flat Poly Bags - 500/Case

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