Default white mailer
M943
White ECT-32 corrugated mailer for compact shipments where presentation matters.
Check: Switch to kraft if presentation color is not important.
Open product page9 x 4 x 3 Mailers, 50-Pack
Exact-size buying page
Pick the right 9 x 4 x 3 mailer, open the matching product page, or send the SKU for a repeat/bulk quote.
Fast pick: Start with M943 for the default white corrugated mailer. Choose M943K for the same size in kraft, ML943 when self-seal literature closure matters, or SKU 943 when the job needs a standard corrugated box instead of a mailer.
Pick By Situation
Kraft finish
M943K
Kraft ECT-32 corrugated mailer for the same 9 x 4 x 3 size in a kraft finish.
Check: Choose white instead when the outside finish matters to the recipient.
Open product pageSelf-seal literature
ML943
White self-seal literature mailer for fast closure on flat or document-style shipments.
Check: Use a standard corrugated mailer if self-seal closure is not needed.
Open product pageCompare Products
Default white mailer
M943
9x4x3 ECT-32-B White Corrugated Mailers, 50-Pack
White ECT-32 corrugated mailer for compact shipments where presentation matters.
9 x 4 x 3 in | White | ECT-32 | 50/pack
$27.98 | In stock | $0.56 eachConfirm current price and cart status on the product page.
Kraft finish
M943K
9x4x3 ECT-32-B Kraft Corrugated Mailers, 50-Pack
Kraft ECT-32 corrugated mailer for the same 9 x 4 x 3 size in a kraft finish.
9 x 4 x 3 in | Kraft | ECT-32 | 50/pack
$46.46 | In stock | $0.93 eachConfirm current price and cart status on the product page.
Self-seal literature
ML943
9x4x3 White Corrugated Literature Mailer - Secure Self-Seal, 50-Pack
White self-seal literature mailer for fast closure on flat or document-style shipments.
9 x 4 x 3 in | White | Strength: confirm on product page | 50/pack
$44.37 | In stock | $0.89 eachConfirm current price and cart status on the product page.
Buying Factors
Presentation
White and kraft options are available for the same listed size.
Closure
Choose self-seal when speed matters; choose standard mailer format when it does not.
Box substitute
Use SKU 943 when the shipment should be a standard carton instead of a mailer.
Quick Facts
| Detail | Value |
|---|---|
| Dimensions | 9 x 4 x 3 in |
| Material / color | Kraft, White |
| Strength | ECT-32 |
| Pack quantity | 50/pack |
| Listed prices | $27.98, $46.46, $44.37. Confirm live checkout price on the product page. |
| Price per piece | M943: $0.56 each, M943K: $0.93 each, ML943: $0.89 each |
| Availability | In stock; confirm live cart status on the product page |
| Bulk orders | Request a bulk or recurring supply quote |
Fit Check Before You Order
- Measure the packed item after inner protection is added, not before.
- Leave enough depth for fold-and-tuck or self-seal closure to sit flat.
- Use the 9 x 4 x 3 corrugated box substitute when the job needs a standard shipping carton instead of a mailer.
SKU Comparison
| SKU | Product | Size | Material / color | Strength | Pack | Closure / style | Price / status | Buy |
|---|---|---|---|---|---|---|---|---|
| M943 | 9x4x3 ECT-32-B White Corrugated Mailers, 50-Pack | 9 x 4 x 3 in | White | ECT-32 | 50/pack | crush-resistant | $27.98 | $0.56 each | In stock | View product Reorder path Bulk quote |
| M943K | 9x4x3 ECT-32-B Kraft Corrugated Mailers, 50-Pack | 9 x 4 x 3 in | Kraft | ECT-32 | 50/pack | crush-resistant | $46.46 | $0.93 each | In stock | View product Reorder path Bulk quote |
| ML943 | 9x4x3 White Corrugated Literature Mailer - Secure Self-Seal, 50-Pack | 9 x 4 x 3 in | White | Confirm on product page | 50/pack | self-seal, literature mailer | $44.37 | $0.89 each | In stock | View product Reorder path Bulk quote |
Prices and availability can change. Use the linked product page for the live checkout state.
Good Fit
- Small ecommerce orders, sample kits, literature packs, compact parts, and boxed gifts that fit inside a 9 x 4 x 3 inch mailer.
- Repeat replenishment where buyers need the same mailer size and sold-as quantity across multiple orders.
- Presentation-sensitive shipments where a white or kraft corrugated mailer is preferred over a plain shipping carton.
Not A Fit
- Items longer than 9 inches, wider than 4 inches, or taller than 3 inches after inner protection is added.
- Fragile products that need loose-fill, foam, or a larger carton to create cushioning space around the item.
- Jobs that need a standard RSC shipping box instead of a fold-and-tuck or literature-mailer style.
Substitutes And Accessories
| SKU | Substitute | Size | Pack | Path |
|---|---|---|---|---|
| 943 | 9x4x3 ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25 Bundle | 9 x 4 x 3 in | 25/bundle | View substitute |
Reorder Path
Use the product links above for checkout. For repeat orders, save the product URL or SKU and use the reorder path or bulk quote path with quantity, delivery ZIP code, receiving notes, and timing.
Quote / Reorder Details To Have Ready
- SKU or product URL for the mailer choice.
- Target order quantity or monthly reorder volume.
- Delivery ZIP code and receiving constraints.
- Whether the order needs white, kraft, or self-seal presentation.
FAQ
Is 9 x 4 x 3 Mailers, 50-Pack the inside size?
Use the linked product page as the current source of truth for listed dimensions, sold-as quantity, price, availability, and checkout delivery options.
Can I request this for a larger or repeat order?
Yes. Use the bulk quote path with product links or SKUs, quantity, delivery ZIP code, receiving notes, and timing.
What is the closest box substitute for this mailer size?
SKU 943 is the listed 9 x 4 x 3 kraft corrugated box substitute. Use it when the shipment needs a standard box format instead of a corrugated mailer.