Continue shopping “Pentair Replacement MasterTemp Max-E-Therm Heater Air Flow Switch 42001-0061S” has been added to your cart. Product Price Quantity Total × Pentair Replacement MasterTemp Max-E-Therm Heater Air Flow Switch 42001-0061S $74.44 Pentair Replacement MasterTemp Max-E-Therm Heater Air Flow Switch 42001-0061S quantity $74.44 Cart totals Subtotal $74.44 Total $74.44 Proceed to checkout — OR — Coupon: