“RETAIL BLACK SHOCK/ TRI-CHL – 4LBS” has been added to your basket. View basket Previous Product Next Product TEST KIT-CYA ACID $6,817.20 100 in stock TEST KIT-CYA ACID quantity Add to basket SKU: PETKK1721 Category: CHEMICALS Tag: CHEM Related products Quick View Quick View CHEMICALSTEST KIT- 2 WAY $4,781.70 Add to basket CHEMICALSMIRACLEAR BLUE CLARIFIER LO CHLOR $4,149.15 Add to basket Quick View Quick View CHEMICALSALGICIDE LO-CHLOR-ALGAECIDE 1 GAL $11,862.50 Add to basket