Continue shopping “Pentair ETI400 Heat Pump Stack Flue Sensor 475601” has been added to your cart. Product Price Quantity Total × Clearview Sodium Bicarbonate Total Alkalinity Up 25lb. CVTA025 $69.01 Clearview Sodium Bicarbonate Total Alkalinity Up 25lb. CVTA025 quantity $69.01 × Pentair ETI400 Heat Pump Ignition Control Module 475976 $198.01 Pentair ETI400 Heat Pump Ignition Control Module 475976 quantity $198.01 × Pentair ETI400 Heat Pump Stack Flue Sensor 475601 $57.01 Pentair ETI400 Heat Pump Stack Flue Sensor 475601 quantity $57.01 Cart totals Subtotal $324.03 Shipping Shipping costs will be calculated once you have provided your address. Total $324.03 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update