Counter Balance , Type D-BP 55, S#67351213, Rope Dia. 5mm, Year 2002, SWL 1/1 : 125 lbs., Air operated @ 89 PSI. Hook path 6' 6",
Comes with one section of tracking to mount it from with 6' 6" travel, New cost for just counter balance is $1,400,
This is a manual type unit that counter balances for more weight the more air pressure that is applied, Looks clean, Barely used