What’s your price?? This 1 I’ve had for a long time and I bought mine open box off amazon and still came in the case with bottles of both 7.0 and either 4 or 10 also!
Limited-time deal: Apera Instruments AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy Amazon product
Lol that is actually the one I put in my cart.