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Your cart is empty.High pressure gas cylinder safety cap. This will work with all high pressure cylinders with FINE threads which most cylinders now have. This cylinder cap is designed to protect the cylinder valve in case the cylinder would fall. Diameter = 3-1/8", thread size 11 UNF (11 threads per inch). To comply with the Department Of Transportation requirement, the main valve must be in the off position in transportation. The Griftan safety cap can be used for transportation with the valve closed.
Theodore Alva
2025-07-21 12:32:10
Fix my argon CO2 mix bottle and is a must for on the go when having cylinders in your work truck. I have my mounted up to the body and shelves in my work van can save time having to unscrew the cap and hook up the regulator and when finishing up put removing the regulator and put the cap back on. Bullpen open up turn on the valve as simple as that.
Brian council
2025-07-16 15:15:58
Great product now I can leave my regulator hooked up and don’t have to constantly keep taking both gas and oxygen regulators off and worry about breaking any gauges while they are not on the tanks osha and msha approved
Topgunz1
2025-06-28 18:17:20
This works on OXY cyl not acetylene. I ordered two and used the second on a mix gas bottle. Works great.
James Kirkland
2025-06-13 14:13:48
Works great for my oxygen tank!
Customer
2025-04-20 10:44:41
Works great.
Dana
2025-03-25 14:05:34
Works like it should , heavy duty
J1
2025-02-09 15:44:48
Good cap
omar maldonado
2024-11-12 16:31:48
Very good
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