18x42 4 Mil Clear Flat Heavy-Duty Poly Bags 200/Case PB1258
$140.95
/ case of 200$0.70 per bag
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
18" × 42"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 42" (L × W) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Case of 200 |
| Order in multiples of | 200 |
| Case weight | 35.24 lb |
| Outer carton (shipping) | 20.0 × 14.25 × 6.5 in |
| LTL freight class | Class 60 |
| SKU | PB1258 |
About this item
SKU PB1258 — 18" × 42", 4 Mil, Clear. Sold as a case of 200, shipped from US warehouses.
18x42" clear flat poly bags in 4 mil polyethylene, a heavy-duty film for parts, hardware, and bulk contents. Packed 200 per case (SKU PB1258); this is a second listing of the same BOX case stock at the same price.
Open-top flat design: seal with twist ties, bag tape, or an impulse sealer (sold separately). Keeps parts, hardware, and products visible while protecting them from dust and moisture. Order by the case of 200.
Common questions
How do I know if my item fits the 18x42" size?
The listed size is 18x42". 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 a nearby size or thickness replace PB1258?
Not as an exact replacement. The closest sizes in this line are 18x36" and 20x42" (same 4 mil film), and the same 18x42" size is also stocked in 3 mil. Before switching, match the listed dimensions, 4 mil thickness, and case count — then reorder by exact SKU PB1258.
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 case of 200 bags — roughly $0.70 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.