042187211916

• 0 — Number system
• 42187 — Manufacturer code
• 21191 — Product code
• 6 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

Dr$20 # best yet drbest+crv100csmod* 6 ea 4ct

Search for Dr$20 # best yet drbest+crv100csmod* 6 ea 4ct on Amazon (or for the code 042187211916)