Welcome to the Cool Pooltester online shop. Cool Pooltester shop : Refill packs Refill Packs Cl/pH/Alk REFERENCE #AR 165/1 Refill Pack for SP 163 including 30 Free Chlorine, 30 pH, 10 Alkalinity tests, spare crushing rod and cell Price:  $12.00 Refill Pack Cl/pH/Cyanuric AcidREFERENCE #AR 165/2 Refill Pack for SP 164 including 30 Free Chlorine, 30 pH, 10 Cyanuric Acid tests, spare crushing rod and cell Price:  $12.00 Refill Pack Cl/pH/Br REFERENCE #AR 165/3 Refill Pack for SP 165 including 30 Free Chlorine, 30 pH, 30 bromine tests, spare crushing rod and cell Price:  $12.00 Refill Packs Br/pH/AlkREFERENCE #AR 165/4 Refill Pack for SP 166 including 30 Bromine, 30 pH, 10 Alkalinity tests, spare crushing rod and cell Price:  $12.00 Buy Online - the best way to buy