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Dual Scale Refractometer with ATC, Brix 0-32%, Gravity 1.000-1.130 – $13.99 + free prime ship
Barambee Portable Brix Refractometer for Homebrew Beer Wort Wine Fruit Sugar – Dual Scale, 0-32% Brix, 1.000-1.130 Specific Gravity Hydrometer with ATC – Handheld, Accessories Included …