Outside style condenser plugs are excellent for sealing leaky and problematic tubes. Made of metal hardware and one or two rings of special isoprene natural rubber compound creates exceptional adhesion to metal, ensuring a leak free seal. When the nut is tightened the rubber expands to fit snug against the inside diameter of the tube while the oversized washer pushes the plug flush against the end of the tube.*Also available with silicone rings for high temperature heat exchangers and condensers.
**Metal hardware comes in brass, bronze, stainless steel, titanium and others upon request. Metal hardware is recommended to match the tube material.