4 Mil Poly Tubing
- 30 sizes in stock
- Widths 1.5" – 48"
- Lengths 1,075'
- 4 Mil
- From $27.99/roll
- Ships same day before 1 PM PT
4 MIL POLY TUBING
Which thickness do you need?
| Thickness | Weight | Best for | In stock |
|---|---|---|---|
| 1.5 Mil Poly TubingEconomy weight | Economy weight | Light to medium items like parts, linens and food | 31 sizes |
| 2 Mil Poly TubingStandard weight | Standard weight | Everyday packaging of parts, apparel and food | 30 sizes |
| 3 Mil Poly TubingMedium weight | Medium weight | Heavier parts, hardware and items with corners | 25 sizes |
| 4 Mil Poly TubingHeavyweight | Heavyweight | Heavy or sharp-edged items such as tools and industrial parts | 30 sizes |
| 6 Mil Poly TubingExtra heavyweight | Extra heavyweight | The heaviest, most puncture-prone loads | 26 sizes |
4 Mil Poly Tubing: frequently asked questions
What sizes do 4 mil poly tubing come in?
We stock 30 sizes, in widths from 1.5" to 48". Every size and its case price is listed above. Need a size we don't stock? Send us a Custom Quote Request.
Is 4 mil the right thickness?
4 Mil is heavyweight, made for heavy or sharp-edged items such as tools and industrial parts. Mil measures film thickness: 1 mil is one-thousandth of an inch (0.001"). Compare all thicknesses in the table above, or read our guide, What is a Mil?
How are they sold, and is there a minimum order?
By the roll. There's no minimum order, and the more you order, the lower the price per roll; each product page shows its volume price breaks.
When will my order ship?
Orders placed before 1 PM Pacific on business days ship the same day from our California warehouse, and delivery usually takes 2–5 business days. Orders of $1,500 or more ship free to commercial addresses. We don't ship to Alaska, Hawaii or Puerto Rico.
Can I get a sample before ordering?
Yes. Samples are free; you only pay a $6.99 shipping fee. Click Want a Sample? on the product page of the size you want.
Do you make custom sizes, colors or printed bags?
Yes. Besides our stock 4 mil poly tubing, we make custom sizes, thicknesses and colors, and can print your logo or brand on the bags. Send us your specs with a Custom Quote Request.
4 Mil Poly Tubing: Heavy-Duty Bags Cut to Length
4 mil (.004") poly tubing is twice as thick as 2 mil and made for heavy-duty applications. Use it to wrap long, heavy or awkward products, such as industrial parts, tools and bulky items, that need a tough, made-to-fit plastic bag. Cut the tubing to length, then heat seal one or both ends. Buying it wholesale on the roll replaces a shelf full of stock bag sizes.
Why choose 4 mil tubing
- Heavy-duty film for heavier products and rough handling
- One roll covers many product lengths
- Clear, so contents stay easy to identify
- Made from 100% virgin LDPE that is FDA-compliant and meets USDA requirements for food contact
- Heat sealable and 100% recyclable
Roll details
Each roll holds 1,075 feet of tubing, half the footage of a 2 mil roll because the film is twice as thick. Widths start at 1.5", and the listed width is the flat measurement, not the bag diameter. All dimensions are in inches.
Sealing options
Seal one end with a heat sealer to create an open bag for loading, then seal the second end once the product is inside. Where a heat seal is not needed, the ends can also be taped, stapled or closed with a twist tie.
Lighter or heavier?
- 2 Mil or 3 Mil Poly Tubing are lighter gauges for food, retail and medium-weight parts.
- 6 Mil Poly Tubing is the step up for very sharp or heavy items such as screws, nails, knives and scissors.
Need finished poly bags instead? See 4 Mil Flat Poly Bags. Compare every gauge in our Poly Tubing collection, or request a custom quote for custom widths or printing.