“TEST KIT- 2 WAY” has been added to your basket. View basket Previous Product Next Product RETAIL BLACK SHOCK/ TRI-CHL – 4LBS $2,600.00 100 in stock RETAIL BLACK SHOCK/ TRI-CHL - 4LBS quantity Add to basket SKU: PCBA4LBSR Category: CHEMICALS Tag: CHEM Related products CHEMICALSALKALINITY INCREASER $1,918.20 Add to basket Quick View Quick View CHEMICALSALGICIDE LO-CHLOR-ALGAECIDE 1 GAL $11,862.50 Add to basket CHEMICALSSTAR CLEAR POOL ACID $1,887.50 Add to basket