“523540 Flow Switch Pentair ChemCheck Water Testing System” has been added to your cart. Continue shopping Product Price Quantity Total × 523540 Flow Switch Pentair ChemCheck Water Testing System $42.98 523540 Flow Switch Pentair ChemCheck Water Testing System quantity $42.98 Cart totals Subtotal $42.98 Shipping Shipping costs will be calculated once you have provided your address. Total $42.98 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update