All DOT approved pressure cylinders require pressure testing at regular intervals.

All high pressure cylinders must be safety tested (Hydrotested) every five (or in some cases, 10) years. The test is designed to ensure that no unsafe condition exists. If the tank test date has “expired” it is illegal to refill them and not advised.  The test dates are stamped directly into the shoulder of the cylinder and is good for 5 years from that date.    (Note: there are special high pressure cylinders that qualify for 10 test intervals, but most consumer sized tanks are tested every 5 years).

All newly manufactured tanks are tested in the factory and may be warehoused sometime before being sold, so your tank will not have the full 5 years remaining on the test date.   We have a high turnover so your date will be as “fresh” as possible.

Getting your tank re-tested every five years is easy in our store in Northridge, California.  We can exchange your out of test tanks on the spot for similar recently tested tanks, and if necessary will prorate the $30.00 hydro test fee accordingly.  ($.50 cents a month or $6.00 per year).

For all other areas,  hydro tests can usually be obtained at local gas suppliers that sell welding and breathing gases.   Please contact us if you need help locating a local gas supplier for hydro testing.

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