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Is Your Propane Grill Tank Cylinder Ready for the Next Fill?

20# propane cylinder with expiration date circled

Every portable propane grill tank cylinder has an expiration date of 12 years from original manufacturing date (by federal law). At the 12-year mark, cylinders must be tested and requalified, or disposed of. As we enter grilling season, many Blossman customers are asking how to know if their propane grill tank cylinders qualify for refilling. Per regulations by the Department of Transportation, there are clear markings to help people know if their cylinders are qualified, safe for residential and recreational use.

Cylinder Markings

Portable cylinders (such as those used for gas lanterns, recreational vehicles, barbecue grills and camp stoves) have several permanent markings on the cylinder body. As a heads-up, you will find several technical notations intended for the use of the manufacturer and propane provider such as “cylinder specification design code” and “cylinder tare weight.” For everyone else who just wants to grill a hamburger, it is only important to recognize the “test” or “requalification” date. 

What the cylinder markings mean

A few more cylinder safety items to keep in mind:

Still not sure if your tank is ready to fill? Don’t worry – it’s what your local Blossman team is here for! Our trained propane experts know all of these cylinder safety guidelines, and a whole lot more about how to keep you and your family safe. Stop by your local store today with questions, or call 1-888-BLOSSMAN.