20309145

• 2030914 — GS1-8 prefix & item reference
• 5 — Check digit (confirms the number is well-formed)

EAN-8 ✓ Valid check digit

• 20005573 — Sondey
• 20199784 — Sondey #2
• 20240981 — Sondey #3
• 20316365 — Sondey #5

Sondey #4

Search for Sondey #4 on Amazon (or for the code 20309145)