You can buy the Cool Retractable Screen Door on Costco.com rather than just in-store only, which is new for the retailer in 2024. Or, you can pick one up on Amazon (however, prepare to spend a bit ...

When paired with a Therma-Tru door, the retractable screen does not detract from the look of the entryway. The Therma-Tru retractable screen fits many 6'8" and 8'0" inswing applications.