12x8 Poly Bags on Roll - 4 Mil Pre-Opened Auto-Fill, 750/Roll
$129.73
/ roll of 750$0.17 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
12" × 8"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 12" × 8" (L × W) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Roll of 750 |
| Order in multiples of | 1 |
| Roll weight | 13.38 lb |
| Outer carton (shipping) | 10.0 × 10.0 × 8.5 in |
| LTL freight class | Class 60 |
| GTIN | 841436044479 |
| SKU | AB319 |
About this item
SKU AB319 — 12" × 8", 4 Mil, Clear. Sold as a roll of 750, shipped from US warehouses.
Pre-opened and perforated 4 mil poly bags designed for high-speed automatic filling equipment. Each roll of 750 bags converts from 1 " to 3 " core, ensuring 100% compatibility with your existing packaging line.
Pre-opened poly bags on roll: Good fit for warehouse fulfillment lines, auto-bagging equipment, parts packing, and high-volume pick-pack operations. These poly bags help fulfillment, warehouse, ecommerce, and parts teams choose right-sized bags for storage, kitting, packing, and shipping workflows.
Common questions
How do I know if my item fits the 8" W x 12" L size?
The listed size is 8" W x 12" L. 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.
What does 4 mil film mean in practice?
A mil is one-thousandth of an inch, so 4 mil film is 4/1000" 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 AB319 for the next size up or down?
Not as an exact replacement. The closest sizes in this line are 8" W x 10" H and 9 x 12 inches (same 4 mil film), and the same 8" W x 12" L size is also stocked in 1 and 2 mil. Before switching, match the listed dimensions, 4 mil thickness, and roll count — then reorder by exact SKU AB319.
How do I close these bags, and how do they ship?
These are open-top bags — close them with a heat sealer, bag tape, twist ties, or staples, whichever fits your workflow. This listing is sold as one roll of 750 bags — roughly $0.17 per bag at the current roll 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.
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.