18x20 3 Mil Reclosable Slide-Seal Poly Bags PB40790
$121.11
/ case
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
18" × 20"
Board / material
3 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 20" (L × W) |
|---|---|
| Board / material | 3 Mil |
| Color | Clear |
| Case weight | 10.02 lb |
| Outer carton (shipping) | 19.25 × 15.0 × 4.5 in |
| LTL freight class | Class 60 |
| SKU | PB40790 |
About this item
SKU PB40790 — 18" × 20", 3 Mil, Clear.
18x20" clear reclosable poly bags in 3 mil polyethylene, a medium-duty film for heavier or sharper items. Packed per (SKU PB40790); this is a second listing of the same BOX case stock at the same price.
Open-top reclosable 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 of .
Common questions
How much usable room does the 18x20" size really have?
The listed size is 18x20". 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.
How does 3 mil compare with lighter or heavier film?
A mil is one-thousandth of an inch, so 3 mil film is 3/1000" 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. This listing's material is specified as 3 Mil Low-Density Polyethylene (LDPE).
Can a nearby size or thickness replace PB40790?
Not as an exact replacement. The closest sizes in this line are 16x18" and 20x20" (same 3 mil film), and the same 18x20" size is also stocked in 4 and 6 mil. Before switching, match the listed dimensions, 3 mil thickness, and closure type — then reorder by exact SKU PB40790.
Do these bags reseal, and how do they arrive?
The closure is listed as Slide-Seal Zipper, so the bag closes without separate tape or heat. 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.