CG-1500 is the standard for the Lynx Express enclosures. Multiple manufactures produce these.
btw...
There are "old" versions that work well because the holes in the LE pcb line up perfectly... and there are "new" versions that changed the location of the posts (stays) so that the pcb no longer matches up.
Unfortunately there are few of the old version enclosures out there.
New enclosures require that you get creative in mounting the board. (People have used wood, plastic and other options to bridging the pcb to the enclosure.