Dellonda 3-in-1 Chlorine, PH & Alkalinity Test Strips – Pack of 50

• PERFECT FOR MAINTAINING WATER QUALITY – Ideal for checking the water quality of Hot Tubs, Swimming Pools, Ponds and Spas.
• EASY COLOUR MATCH SYSTEM – Dip the water quality testing strip fully into the water, remove and hold horizontally then read against the coloured chart on the side of the bottle in 30 seconds.
• SUITABLE FOR – Can be used for both inflatable Hot Tubs & Pools
• LONG-LASTING PACK – Supplied in a pack of 50 which should allow you to test the water multiple times a week through the summer season.