4x20" 1 Mil Clear Flat Poly Bags - 1000/Case Food Grade
$24.99
/ case of 1000$0.02 per bag
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
4" × 20"
Board / material
1 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 4" × 20" (L × W) |
|---|---|
| Board / material | 1 Mil |
| Color | Clear |
| Sold as | Case of 1000 |
| Order in multiples of | 1000 |
| Case weight | 5.4 lb |
| Outer carton (shipping) | 11.75 × 5.0 × 5.0 in |
| LTL freight class | Class 60 |
| GTIN | 848109010281 |
| SKU | PB2227 |
About this item
SKU PB2227 — 4" × 20", 1 Mil, Clear. Sold as a case of 1000, shipped from US warehouses.
The 4x20" 1 Mil Clear Flat Poly Bags is a poly bag for parts, samples, apparel, documents, liners, inner packs, and warehouse kitting. Listed specs include size 4" x 20"; poly material; 1 Mil; case of 1000. Use it as a packing bag, parts bag, inner poly envelope, or e-commerce bag when the item fits the listed size and thickness.
Flat poly bags: Good fit for bulk storage, product protection, clear inventory handling, fulfillment packing, and clear packaging workflows. These poly bags help fulfillment, warehouse, ecommerce, and parts teams choose right-sized bags for storage, kitting, packing, and shipping workflows.
Common questions
How much usable room does the 4x20" size really have?
The listed size is 4x20". Plan for contents slightly smaller than the nominal size — the usable interior runs a bit under the listed measurement once the bag takes shape around what you load into it.
Is 1 mil the right thickness for my use?
A mil is one-thousandth of an inch, so 1 mil film is 1/1000" thick — 4 mil film, for example, is twice the film thickness of 2 mil. Heavier film of the same material stands up to punctures and rough handling better; lighter film costs less per bag and packs tighter.
Can I swap PB2227 for the next size up or down?
Not as an exact replacement. The closest sizes in this line are 4" W x 16" L (Lay Flat) and 5x20" (same 1 mil film), and the same 4x20" size is also stocked in 2 and 3 mil. Before switching, match the listed dimensions, 1 mil thickness, closure type, and case count — then reorder by exact SKU PB2227.
How does the closure work, and what does a full order look like? And can I use them for food?
The closure is listed as Open-End (compatible with Twist Ties, Bag Tape, or Impulse Sealers), so the bag closes without separate tape or heat. This listing is sold as one case of 1,000 bags — roughly $0.025 per bag at the current case price (confirm the live price before ordering). Orders ship from Packrift's five US warehouse regions (Central IL, NE PA, S TX, SE GA, and W CA); delivery options and timing are shown at checkout. On food use: poly film like this is commonly used in food packaging, but food-contact compliance is certified per product lot. Check the spec sheet or contact us for documentation before direct food contact.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.