Continue shopping “561683 AquaChek Pool Spa TDS Test Strips (2 Count)” has been added to your cart. Product Price Quantity Total × 561683 AquaChek Pool Spa TDS Test Strips (2 Count) $18.49 561683 AquaChek Pool Spa TDS Test Strips (2 Count) quantity $18.49 Cart totals Subtotal $18.49 Shipping Shipping costs will be calculated once you have provided your address. Total $18.49 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update