This brass fitting will convert your C02 tank valve into a valve with a permanent sealing O ring. No more need to buy fiber or plastic tank sealing washers.
Installs in any CGA-320 C02 valve that has female threads in the center of the outlet. Use a 5/32" hex key to screw this in.
Important: Before ordering, check to see if the C02 valve's outlet hole on your cylinder has female threads. If it does this will work, if the hole is smooth without threads, this will not fit.
This shows the fitting disassembled. All parts are standard Cornelius type, and the sealing silicone O ring is our item R42.
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worked perfectly
sharing my tank and regulator with friends, and the washers kept getting lost between transfers... so I purchased two of these, one for my 20# tank and one for my 5# CO2 tank... they worked PERFECTLY!!!! I have the fiber washers as a backup, but these are so much easier, and never get lost! Happy me!!!!