Approximately 110 tablets made with Potassium Metabisulfite. 1 tablet per gallon equals 30 ppm free SO2. Each tablet is about 0.5 g.

Campden Tablets, 2 oz - Preorder
$4.79

Approximately 110 tablets made with Potassium Metabisulfite. 1 tablet per gallon equals 30 ppm free SO2. Each tablet is about 0.5 g.