Postal Approved Self-Seal Mailing Bags

Postal approved mailing bags are clear 2 mil self-seal poly bags made to USPS-T-3204, the Postal Service's requirements for automation-rate flat-size mail. Use them to mail catalogs, magazines, newsletters and other flats with the address showing through. They seal with a permanent lip-and-tape closure and come in 6" x 9" to 12" x 15.5", 1,000 per case.

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Postal Approved Self-Seal Mailing Bags

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Postal Approved Self-Seal Mailing Bags4 products
SKUDescriptionUnitPriceQtyOrder
137006" x 9" + 1.5" 2 Mil Self-Seal Postal Approved Mailing Bags1000/Case$43.00
136509" x 12" 2 Mil Self-Seal Postal Approved Mailing Bags1000/Case$84.00
1371010" x 13" 2 Mil Self-Seal Postal Approved Mailing Bags1000/Case$109.00
1371512" x 15.5" 2 Mil Self-Seal Postal Approved Mailing Bags1000/Case$177.00

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Postal Approved Mailing Bag Sizes

What USPS-T-3204 Means

USPS-T-3204 is the Postal Service's specification for plastic film used on automation-rate flat-size mail. Bags that meet it can run through postal sorting equipment, which mailers need to qualify for automation pricing on flats.

Clear Bags for Addresses and Inserts

The clear film lets an address on the mail piece or an inserted address card read through, so there's no separate label. For opaque shipping, see poly mailers.

Wholesale & Bulk

Sold by the case with volume pricing on larger orders and free shipping on orders over $2,000. For ongoing or high-volume orders, request a quote. Browse all mailing and shipping supplies.