Gypsum
$2.66
Gypsum
- 2 Ounce
is backordered and will ship as soon as it is back in stock.
Gypsum Gypsum (calcium sulfate) adds permanent hardness (calcium ions) to brewing water; 1 gram per gallon adds 62 ppm calcium, 147 ppm sulfate. Available in 2 Ounce | 1 Pound | 50 Pound
