difference in arms

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The 4041 Rw/PA and the Hw/PA have the same template.  The only difference is the arm. The 4041/4040XP Hw/PA, if mounted to the 180° template, will hold the door open at 180°. Rw/PA is Regular A...
EDA ARM - The EDA arm is a heavy duty parallel arm mount.  The degree of door opening is determined by the template used for mounting. EDA arm closers can only be mounted as a Push Side parallel ar...
The Rw/PA arm is simply a regular arm that is packed with a 62PA (parallel arm) shoe, which will allow a (Tri-Pack) closer to be mounted in a regular, top jamb, or parallel arm application.
The 4110-18, and 4110-18 CUSH  drop plates are identical. The difference between a 4110 EDA, and a 4110 CUSH is the templating on the door. That is why you order them differently, to...
The design change went into effect on 6-16-2011.  The stop is now removable and can be changed from one side of the shoe to the other, which makes it a non-handed arm.  All arms are shipped standar...
This engineering change did affect the templating of the closer. The stop in the shoe is slightly larger than the original handed cush shoe. The new non-handed arm template locates the closer and s...