Corbin Dorma Dorma-Taco Doromatic Jackson Kawneer LCN Lockwood Norton R&K Rixson Roto-Swing Russwin Sargent Tubelite
Corbin
Model 2-6
Reversible handingSized springIdentified by # on the arm No hold open featureclick images to enlarge
Model 102-106
Reversible handingSized springIdentified by # on the arm Hold open feature built in
Model 70
Reversible handingSized spring 3-5Identified by # on bottom of the caseModel 100/2800
Non handedSized spring 2-5Identified by # on end plug10" in length
Model 110/2810 - 120/2820
Non handed(110/2810) Sized spring(120/2820) AdjustableIdentified by # on end plug11" in length
Model 500
HandedSized spring 1-4Identified by # at shaftSurface applied or concealedSize 4 has tube extended
