This listing is for one Stainless Steel SCBA tank thread adapter.  The male threads are 7/8" X 14 TPI, with an O-ring seal.  This is the standard thread for the neck on most SCBA tanks.  The other side of this adapter has female 1/4" NPT threads.

This adapter will allow you to tie in to your SCBA tank directly.  It is used to make custom air storage or filling stations using SCBA tanks.  To install this item on your tank, you must first remove the valve.  I use these to cascade several SCBA tanks into one large bank of tanks for my SCUBA compressor.

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