General information
Chlorine and pH Tester Pack (Pool tester): a chlorine (range 0.1 - 6.0mg/l) and pH (range 6.8 -8.2) pocket-type test kit, for 20 tests.
Pool tester tablets are usually supplied in boxes of 250 pieces, orders accordingly.
Specifications
Pool testers are available in many places, check quality prior to purchase. Also check the expiry dates of the consumables.