“BLACK ALGAE SHOCK/ TRI-CHLOR GRANULES 90” has been added to your basket. View basket Previous Product Next Product ALUM $1,006.25 100 in stock ALUM quantity Add to basket SKU: PCAL004 Category: CHEMICALS Tag: CHEM Related products CHEMICALSSTAR CLEAR POOL ACID $1,887.50 Add to basket CHEMICALSBLACK ALGAE SHOCK/ TRI-CHLOR GRANULES 90 $2,990.00 Add to basket CHEMICALSRETAIL BLACK SHOCK/ TRI-CHL – 4LBS $2,600.00 Add to basket