If you are searching for plastic zip lock bag manufacturers, compare bag dimensions, thickness, closure style, material details, and order quantity before choosing a supplier. The five options below cover heavy-duty storage, bulk packaging, food storage, and commercial use. GPI is best represented here by its thick and bulk 6-by-9-inch bags; Spartan Industrial offers a larger bulk format, while KAMOJI and Inteplast listings address food and commercial needs. These are product examples, not a complete directory of manufacturers.
| Product | Best For | Key Detail |
|---|---|---|
| GPI 4 Mil, 6 x 9 Inches | Heavy-duty parts storage | 100 bags; reinforced thickness |
| GPI 2 Mil, 6 x 9 Inches | Bulk everyday organization | 1,000 bags |
| Spartan Industrial, 8 x 10 Inches | Bulk packaging and samples | 1,000 clear bags; 2 mil |
| KAMOJI Long Food Bags | Reusable food storage | Extended length; washable |
| Inteplast Get Reddi Poly Bags | Food-service and general use | Case of 1,000; listing details conflict |
GPI 4 Mil Heavy-Duty Zip Bags
These GPI bags measure 6 by 9 inches, come in a 100-count pack, and are listed as 4 mil thick. The product information describes tear-resistant material, a sturdy reclosable zip, and ridges at the lip to support opening and closing.
Best for: Buyers who need a smaller supply of thicker bags for tools, hardware, workshop parts, office items, or longer-term freezer organization. The 4 mil specification makes this a better choice for demanding storage than the listed 2 mil options.
Consideration: The 100-count pack may be less suitable for high-volume packaging than a 1,000-count case. The listing does not specify a load limit, so avoid assuming these bags can hold any particular weight.
GPI 2 Mil Bulk Zip Bags
This GPI pack contains 1,000 reclosable bags measuring 6 by 9 inches and 2 mil thick. The product details highlight a lip designed for easier opening, a reusable lock zipper, and a seal described as airtight, waterproof, and dustproof.
Best for: Offices, homes, travel organization, portioning, and businesses that use many small bags. Choose this bulk pack if quantity matters more than the added thickness of the 4 mil GPI option.
Consideration: At 2 mil, these bags are thinner than the 4 mil alternative. They may not be the right choice when the intended use calls for heavier-duty material.
Spartan Industrial 8 By 10 Inch Bags
Spartan Industrial’s clear bags come in a 1,000-count pack and are listed as 8 by 10 inches, with the length excluding the zipper. The product specifies 2 mil clear virgin LDPE plastic and a resealable closure. Suggested uses include product samples, homemade soaps, snacks, travel items, and packaging.
Best for: Buyers who need a larger bag than the 6-by-9-inch GPI options while maintaining a bulk pack. Clear material can help users identify contents without opening each bag.
Consideration: The 2 mil thickness is not the thickest option in this selection. The stated airtight, water-resistant protection should not be treated as a guarantee that the bag is waterproof under every condition.
KAMOJI Long Reusable Food Bags
KAMOJI’s 15-piece set is described as transparent, food-grade, and reinforced with a double seal. The bags have an extended length intended for larger foods such as baguettes and vegetables, as well as meal-prep containers. The listing says they can be rinsed with mild soap, air-dried, and reused.
Best for: Households looking for reusable food storage bags with more length than standard small zip bags. The washable design is the main distinction from the disposable bulk packs.
Consideration: The supplied details do not state exact dimensions or material thickness. Check the listing for sizing before buying, especially if the bags must fit a particular container or produce item.
Inteplast Get Reddi Food And Poly Bags
This Inteplast case contains 1,000 clear bags. The product name identifies an 8-by-4-by-18-inch format and 0.68 mil thickness, while the feature text describes a 12-by-12-inch bag with an 8-quart capacity. The features also mention a zipper closure and uses in restaurants, food service, and homes.
Best for: Commercial buyers considering a high-count clear bag case for food or general storage, provided the seller confirms the correct dimensions and closure.
Consideration: The product name and feature details conflict on dimensions, and the name does not clearly confirm a zipper closure. Verify those specifications before ordering; the listed 0.68 mil thickness is also thinner than the other specified options.
Buying Guide: How To Compare Plastic Zip Lock Bag Suppliers
Which thickness should you choose?
Use the intended contents to guide thickness selection. The listed 4 mil GPI bags are the thickest option with a clear thickness specification here and are positioned for tougher storage needs. The 2 mil GPI and Spartan bags suit lighter organization and packaging. Inteplast is listed at 0.68 mil, so confirm that this thinner format meets your use requirements.
What dimensions and quantity fit your operation?
Compare usable length and width, and check whether stated length excludes the zipper. Smaller bags suit components and travel organization; larger formats can accommodate samples or food items. Bulk packs reduce how often buyers reorder, but a 100-count pack can be a practical way to avoid excess inventory. Confirm inconsistent listing measurements before placing a large order.
Do you need reusable, food-related, or industrial bags?
For repeated food storage, the KAMOJI listing specifically describes washable, reusable bags. For parts and workshop organization, the GPI 4 mil option is the more heavy-duty choice in this selection. For food-contact applications, confirm the seller’s material and intended-use details rather than relying only on general product descriptions.
What should you verify with a manufacturer or supplier?
Ask for written confirmation of dimensions, thickness, material, closure type, pack quantity, and the intended application. For recurring or custom orders, request product specifications that match the exact item being quoted. If the listing has conflicting details, resolve them before comparing suppliers or ordering in volume.
Frequently Asked Questions
Are these products all plastic zip lock bags?
Most are described as reclosable zip bags. The Inteplast listing’s name and features differ on dimensions and closure details, so verify that item before purchase.
Which option is best for heavy-duty storage?
The GPI 6-by-9-inch bags listed at 4 mil are the strongest thickness option specified among these products.
Which bags are sold in the largest quantities?
The GPI 2 mil, Spartan Industrial, and Inteplast options are each listed in 1,000-count packs.
Are the bags suitable for food?
KAMOJI describes its bags as food-grade. Other listings mention food uses, but buyers should confirm food-contact suitability for their specific application.
How can buyers evaluate a plastic bag manufacturer?
Compare documented material and size specifications, closure details, order quantities, and the supplier’s ability to confirm consistent product information. Request clarification when listing details conflict.