Copper Product code: HCALG2001 MF: CuSO4.5H2O Packing:0.5 L,1L,5L Bottle Copper AlgaecideProduct code: HCALG2001Features:Long lasting algaecide with organic copper basis. Eradication and prevention of blue-green, black and mustard algae varieties. Significant clarifying effect. Excellent booster for salt water chlorinators.Size:0.5L, 1L, 5L Bottle and etc.