Continue shopping “523539 Flow Valve Pentair ChemCheck Water Testing System” has been added to your cart. Product Price Quantity Total × 523539 Flow Valve Pentair ChemCheck Water Testing System $39.01 523539 Flow Valve Pentair ChemCheck Water Testing System quantity $39.01 Cart totals Subtotal $39.01 Shipping Shipping costs will be calculated once you have provided your address. Total $39.01 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update