Corbin Dorma Dorma-Taco Doromatic Jackson Kawneer LCN Lockwood Norton R&K Rixson Roto-Swing Russwin Sargent Tubelite
Sargent
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Model 40
Reversible handingSized spring (2-5)Identified by number stamped on lidModel 50
HandedSized spring (3-5)Identified by number stamped at fill plugSingle spring tube
Model 70
HandedSized spring (3-5)Identified by number stamped at fill plugDual spring tube
Model 150
HandedSized spring (3-5)Identified by number stamped at fill plugBackcheck adustment
Model 250
HandedAdjustable spring tensionIdentified by number stamped at fill plug
Model 1220
Non handedAdjustable spring tensionIdentified by number stamped at end plug
Model 1230
Non handedSized spring (3-5)Identified by number stamped at end plugNo backcheckModel 1240
Non handedSized spring (3-5)Identified by number stamped at end plugNo backcheckModel 1250
Non handedSized spring (2-6)Identified by number stamped at end plugBackcheckModel 1251
Non handedSized spring (1-6)Identified by number stamped at end plugBackcheck
