Altus wide shoulder/Fat Tank Extension Fitting

Tank extension fitting for tanks with an exposed shoulder below where the valve is fitted to the cylinder.  This shoulder prevents the standard Aithre t-fitting from rotating into position.

1/8" male x 1/8" female NPT - stainless steel high-pressure tank fitting that extends and provides clearance to the t-fitting in the Altus kit.

WARNING: Do not use any unapproved fittings on your oxygen tank as the fittings Aithre provides are special high-pressure fittings designed to withstand 5000 plus PSI.  Many store-bought fittings are only rated to 100-300 PSI, which is not sufficient for oxygen tanks.