Lovibond Phenol Red tablets for measuring pH in pool water. Tablets are for comparator use. We supply high quality water testing tablets and kits available from leading manufacturers Lovibond and Palintest. We can supply the full range of Lovibond and Palintest equipment from their catalogues. If you cannot find an item from Lovibond or Palintest in our shop then send us an email and we can provide you a quote and arrange postage direct from the manufacturer at a price often 20% less than the recommended retail price. sku: 511751BT