Anyone have any ideas for this one? It is a 3000psi Luxfer cylinder that came out of a power plant and is listed as "escape air". I was thinking maybe a bailout bottle or kids set up. Its probably around 14 cf or so. The valve looks to be 1/2 nps so Id have to find a Sportsways or White Stag valve. I believe thoae are the ones that were nps with an oring seal.