Professional Test Kit For Hot Tubs & Swimming Pools
Free 30 DPD number 1 tablets
Free 30 Phenol red tablets
Testing the water in your swimming pool or hot tub is vitally important, this is where the Castle Hot Tubs water testing kit comes into its own. This test kit will give you an accurate chlorine and pH reading. Simply compare the colours against the colour chart on the test kit after the tablets are dissolved in the correct chambers.