Which shipping option do I choose for a priority box 7? I'm used to flat rate boxes and this is a new one for me. : r/USPS
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![All about Priority Mail Regional Rate [Updated with 2018 Rates] - Online Shipping Blog | Endicia](https://online-shipping-blog.endicia.com/wp-content/uploads/2017/09/USPS-Priority-Mail-Regional-Rate.jpg "All about Priority Mail Regional Rate [Updated with 2018 Rates] - Online Shipping Blog | Endicia")
All about Priority Mail Regional Rate [Updated with 2018 Rates] - Online Shipping Blog | Endicia
Priority Mail Box 12 1/4" x 12 1/4" x 8 1/2" – Stamps.com Supplies Store
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USPS Flat Rate Boxes, Envelopes, & Pricing - EasyPost
Priority Mail® Forever Prepaid Flat Rate Medium Box – 1 – PPFRB1 | USPS.com
USPS To Kill Priority Mail Regional Rate Boxes in 2023?
