13x18" 4 Mil White Block Reclosable Poly Bags - 500/Case
$172.54
/ case of 500$0.35 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
13" × 18"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 13" × 18" (L × W) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Case of 500 |
| Order in multiples of | 500 |
| Case weight | 36.82 lb |
| Outer carton (shipping) | 14.0 × 12.0 × 11.25 in |
| LTL freight class | Class 60 |
| GTIN | 812578001125 |
| SKU | PB4020 |
About this item
SKU PB4020 — 13" × 18", 4 Mil, Clear. Sold as a case of 500, shipped from US warehouses.
Heavy-duty 4 mil reclosable poly bags with large white block for custom labeling, no separate labels needed. Sold as case of 500 for cost-efficient, bulk packaging.
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
How do I know if my item fits the 13x18" size?
The listed size is 13x18". 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 I swap PB4020 for the next size up or down?
Not as an exact replacement. The closest sizes in this line are 12x18" and 14x20" (same 4 mil film), and the same 13x18" size is also stocked in 6 mil. Before switching, match the listed dimensions, 4 mil thickness, closure type, and case count — then reorder by exact SKU PB4020.
How do these bags close, and how are they shipped?
The closure is listed as Reclosable Ziplock with White Write-On Block, so the bag closes without separate tape or heat. This listing is sold as one case of 500 bags — roughly $0.35 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.