“RETAIL BLACK SHOCK/ TRI-CHL – 4LBS” has been added to your basket. View basket Previous Product Next Product TEST KIT – COMMERCIAL $45,653.40 100 in stock TEST KIT - COMMERCIAL quantity Add to basket SKU: PETKK2005C Category: CHEMICALS Tag: CHEM Related products CHEMICALSTEST KIT-CYA ACID $6,817.20 Add to basket Quick View Quick View CHEMICALSBRINE CRYSTALS $1,900.00 Add to basket CHEMICALSTRICHLOR CHLORINE TABLETS $2,875.00 Add to basket