Gas Strut for Hancock and Moore

I need the gas strut for this chair, but cannot find a model number anywhere on it. Can somebody identify it? It looks fairly simple to get to the strut with the cushion off and the chair reclined. Advice? Place to get the strut? Thanks in advance.Attachment 13690

It looks like the Austin to me. http://www.hancockandmoore.com/Produ...ilt-Back-Chair

I have units in stock, they all take the same one. More here at this link:

http://www.myfurnitureforum.com/show...light=cylinder