“RETAIL BLACK SHOCK/ TRI-CHL – 4LBS” has been added to your basket. View basket Previous Product Next Product BRINE CRYSTALS $1,900.00 100 in stock BRINE CRYSTALS quantity Add to basket SKU: PCBC001 Category: CHEMICALS Tag: CHEM Related products Quick View Quick View CHEMICALSALUM $1,006.25 Add to basket CHEMICALSCYANURIC ACID REAGENT 8oz $2,097.90 Add to basket Quick View Quick View CHEMICALSALGICIDE LO-CHLOR-ALGAECIDE 1 GAL $11,862.50 Add to basket