Kraft Square Mailing Tubes
- These one-piece tubes ship flat to save space.
- Tubes fold together fast without tape or glue.
- Constructed from ECT-32-B, kraft corrugated.

Stock Number | Inside Dimensions W x D x L | Bundle/ Bale | 50 | 100 | 300 | 500 | 1M+ | Add to Cart |
|---|---|---|---|---|---|---|---|---|
| M3318K | 3 x 3 x 18" | 25/1600 | $2.48 | $2.34 | $2.21 | $2.08 | $2.01 | |
| M3325K | 3 x 3 x 25" | 25/800 | 3.14 | 2.97 | 2.80 | 2.63 | 2.55 | |
| M3330K | 3 x 3 x 30" | 25/800 | 3.40 | 3.22 | 3.04 | 2.85 | 2.76 | |
| M3337K | 3 x 3 x 37" | 25/800 | 3.98 | 3.76 | 3.55 | 3.33 | 3.23 | |
| M3348K | 3 x 3 x 48" | 25/500 | 5.37 | 5.08 | 4.79 | 4.50 | 4.35 | |
| M5518K | 5 x 5 x 18" | 25/800 | 2.07 | 1.96 | 1.85 | 1.73 | 1.68 | |
| M5530K | 5 x 5 x 30" | 25/800 | 5.37 | 5.08 | 4.79 | 4.50 | 4.35 | |
| M5537K | 5 x 5 x 37" | 25/800 | 5.73 | 5.42 | 5.11 | 4.80 | 4.65 | |
| M5548K | 5 x 5 x 48" | 25/800 | 4.03 | 3.81 | 3.59 | 3.38 | 3.27 |
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