4 Mil Clear Flat Poly Bags 20x4 - Heavy-Duty Protection, Case of 1000
$81.63
/ case of 1000$0.08 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
20" × 4"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 20" × 4" (L × W) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Case of 1000 |
| Order in multiples of | 1000 |
| Case weight | 21.9 lb |
| Outer carton (shipping) | 11.25 × 9.0 × 8.75 in |
| LTL freight class | Class 60 |
| GTIN | 841436024983 |
| SKU | PB1077 |
About this item
SKU PB1077 — 20" × 4", 4 Mil, Clear. Sold as a case of 1000, shipped from US warehouses.
4 mil flat poly bags in 20x4 dimensions designed for heavy-duty product protection. Convenient case of 1,000 bags delivers cost-efficient packaging for tools, hardware, and sensitive items with guaranteed durability.
Flat poly bags: Good fit for bulk storage, product protection, clear inventory handling, fulfillment packing, and 4 mil 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 20" Length x 4" Width size really have?
The listed size is 20" Length x 4" Width. 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 4 mil the right thickness for my use?
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 a nearby size or thickness replace PB1077?
Not as an exact replacement. The closest sizes in this line are 18" L x 2" W and 36" W x 4" H (Lay Flat); any size change alters the usable interior. Before switching, match the listed dimensions, 4 mil thickness, and case count — then reorder by exact SKU PB1077.
What do I need to seal these, and what does a full order look like?
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 case of 1,000 bags — roughly $0.082 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.
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.