Product Tip
Normal chlorine and bromine test strips are not designed for use with the active oxygen system.
AquaChek MPS spa test strips (For use with Active Oxygen)
£ 15.40
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Product Details
Suitable for testing Active Oxygen in Hot Tubs and Pools
These 3 in 1 test strips enable you to test the pH, alkalinity and MPS levels in your hot tub or swimming pool.