Suspa P/N C16-31895A 20lb force, 40" extended. As far as I know, these have had very little use. I did not use them, the member of this forum I bought them from did not use them, and the member he bought them from used them very briefly. Two show slight fading due to sun exposure, all work perfectly and feel similar in compression and rebound.
Asking $60 shipped in the lower 48.
Asking $60 shipped in the lower 48.