“ALKALINITY INCREASER” has been added to your basket. View basket Previous Product Next Product BLACK ALGAE SHOCK/ TRI-CHLOR GRANULES 90 $2,990.00 100 in stock BLACK ALGAE SHOCK/ TRI-CHLOR GRANULES 90 quantity Add to basket SKU: PCBA001 Category: CHEMICALS Tag: CHEM Related products CHEMICALSALGICIDE $1,725.00 Add to basket Quick View Quick View CHEMICALSBRINE CRYSTALS $1,900.00 Add to basket Quick View Quick View CHEMICALSALGICIDE- LO CHLOR ALGAECIDE QUART $4,793.13 Add to basket