18x20" 6 Mil White Block Reclosable Poly Bags - Heavy-Duty Storage, Case of 250
$272.31
/ case of 250$1.09 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" × 20"
Board / material
6 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 20" (L × W) |
|---|---|
| Board / material | 6 Mil |
| Color | Clear |
| Sold as | Case of 250 |
| Order in multiples of | 250 |
| Case weight | 41.15 lb |
| Outer carton (shipping) | 22.0 × 19.25 × 6.75 in |
| LTL freight class | Class 60 |
| GTIN | 841436093941 |
| SKU | PB4034 |
About this item
SKU PB4034 — 18" × 20", 6 Mil, Clear. Sold as a case of 250, shipped from US warehouses.
Heavy-duty 6 mil white block reclosable poly bags (18x20 " ) designed for industrial parts, tools, and supplies storage. Reusable zipper closure with large write-on block for labeling.
Reclosable poly bags: Good fit for parts, samples, documents, apparel accessories, small kits, and inventory that needs a resealable closure. These poly bags help fulfillment, warehouse, ecommerce, and parts teams choose right-sized bags for storage, kitting, packing, and shipping workflows.
Common questions
What actually fits inside a 18x20" bag?
The listed size is 18x20". The catalog lists inside-usable dimensions of 18 x 20 inches, so that measurement is what your item has to fit within.
How does 6 mil compare with lighter or heavier film?
A mil is one-thousandth of an inch, so 6 mil film is 6/1000" 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 Low-Density Polyethylene (LDPE), 6 Mil Thickness.
Can a nearby size or thickness replace PB4034?
Not as an exact replacement. The closest size in this line is 13x18" (same 6 mil film), and the same 18x20" size is also stocked in 2 and 4 mil. Before switching, match the listed dimensions, 6 mil thickness, closure type, and case count — then reorder by exact SKU PB4034.
Do these bags reseal, and how do they arrive?
The closure is listed as Reclosable Zipper (Resealable), so the bag closes without separate tape or heat. This listing is sold as one case of 250 bags — roughly $1.09 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.