4" x 725' Black Poly Tubing 4 Mil - Light Blocking, 1 Roll
$45.80
/ roll
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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
725' × 4"
Board / material
4 Mil
Color
Black
Freight class
Class 60
Specifications
| Inside dimensions | 725' × 4" (L × W) |
|---|---|
| Board / material | 4 Mil |
| Color | Black |
| Order in multiples of | 1 |
| Roll weight | 11.16 lb |
| Outer carton (shipping) | 13.0 × 12.5 × 5.0 in |
| LTL freight class | Class 60 |
| GTIN | 841436098243 |
| SKU | PT0404B |
About this item
SKU PT0404B — 725' × 4", 4 Mil, Black.
Reduce packaging costs with customizable 4 " x 725 ' black poly tubing rolls. All-virgin 4 mil low-density polyethylene completely blocks light and protects light-sensitive products. Create bags of any size, cut, fill, and heat seal with impulse sealers for maximum line flexibility without bulk inventory.
Common questions
How do I size bags cut from this tubing?
The roll is listed at 4" x 725'. You cut the tubing to whatever length each item needs and seal both ends, so bag length is up to you; only the layflat width is fixed. Size the width with a little slack so contents slide in without stretching the film.
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.
Is there a drop-in substitute for PT0404B?
Not as an exact replacement. Treat any different size or film weight as a different product. Before switching, match the listed dimensions and 4 mil thickness — then reorder by exact SKU PT0404B.
How does the roll arrive, and what do I need to seal it?
Cut pieces are closed on both ends — most operations use an impulse or heat sealer, though tape or twist ties also work for temporary closures. 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.