DORMA BTS 75 BF 90 DEG HOLD OPEN

90 degree hold open, barrier free (bf) center hung, non-handed, accommodates doors weighing up to 260 lbs. and measuring  up to 3′-6″ wide interior and 3′-0″ exterior. Opening force 5 lb. or less on interior doors 8.5 lb or less on exterior doors.