Real Estate Rider add-on

[psbc2009]

Please see attached pic of metal rider frame - it attaches to a metal real estate frame to give an additional rider space. Customer gave me this one for reference but wants to order them. Anyone know where to get them.
Already tried Glantz and Grimco.
Thanks and Merry Christmas.

 

[qmr55]

Almost positive we get them from N. Glantz