Jet Swet #101 1" Replacement GasketAll Gaskets on the Jet Swet tools are a silicone composite for extraordinary heat resistance and are completely replaceable. Jet Swet tools hold more pressure than any other tool in its class because each gasket is designed, formed and manufactured specifically for Jet Swet tool and pipe for which it is designated. For this reason, and for the superb performance customers are used to in the Jet Swet line of tools, Jet Swet gaskets are not interchangeable and the tools should not be modified to accept any other size or brand of gasket.Jet Swets are made from the highest quality steel and aircraft aluminum.The Jet Swet gasket is a special EPDM/Silicon composite, made to withstand the intense heat of soldering and braising.There is a 1 year warranty from manufacturers defect on the entire tool except for the disposable, replacement gaskets.