On Amazon today: API Freshwater Master Test Kits sold by PETCO for $9.99 with free shipping. Need to go to bottom of description to: New (20) from $9.99
https://smile.amazon.com/API-FRESHW...test+kit&qid=1573120403&s=pet-supplies&sr=1-4
https://smile.amazon.com/API-FRESHW...test+kit&qid=1573120403&s=pet-supplies&sr=1-4