Look in this order
- Original canopy tag: inspect the underside, inner seams, and corners for a sewn white label.
- Assembly manual: check the cover and first pages for a model, item, or style number.
- Frame labels: inspect the inside of each leg, crossbars, roof hub, and base plates.
- Purchase history: search the retailer receipt, account, or confirmation email.
Copy the whole identifier
Suffixes matter. 61821-C is not automatically the same as 618221-C. Likewise, a record for GF-12S004B does not prove a match for GF-12S004B-1.
Avoid the most expensive shortcut: do not buy from “10 × 10” or “looks identical” alone. Corner geometry, pockets, roof tiers, and attachment points vary.