When LCN launched the 4050A closer, the old style 4050 arms where available for a period of time as an ST (ST-5220 XX), but as of April 17, 2023 a decision was made to obsolete them all.
FOR PRODUCT SUPPORT/INTERNAL ONLY:
Product Management decided to keep three of these old style 4050 ST's -- ST-5220-6, -7, and -8. These Three ST's will only be available for Intermountain Lock ONLY! No one else can order them.
ST-5220-6 old style 4050 EDA arm
ST-5220-7 old style 4050 HEDA RH arm
ST-5220-8 old style 4050 HEDA LH arm
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