“561683 AquaChek Pool Spa Total Dissolved Solids TDS Test Strips” has been added to your cart. Continue shopping Product Price Quantity Total × 561683 AquaChek Pool Spa Total Dissolved Solids TDS Test Strips $11.87 561683 AquaChek Pool Spa Total Dissolved Solids TDS Test Strips quantity $11.87 Cart totals Subtotal $11.87 Shipping Shipping costs will be calculated once you have provided your address. Total $11.87 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update