A device and method are provided for neutralizing corrosive fluids that discharge from several types of condensing appliances. The disclosed device comprises a flow enclosure and a flow channel concentrically aligned with an inlet connection positioned on an upper cap and aligned substantially perpendicular to an outlet connection also positioned on the upper cap, thus allowing the disclosed device to further serve as a gas trap. Replacement of the neutralizing media housed within the flow enclosure may proceed without disconnecting the device at the inlet.