https://www.rbahelp.com/exit-devices/von-duprin-8827-bottom-latch-dragging-or-scrapping-on-floor/attachment/88vr10-2/ Helpful Tips and Instructions for Commercial Door, Partition, Locker, Stair Treads, Window Parts, and Bleacher Concerns Wed, 08 Aug 2012 19:10:06 +0000 hourly 1