Dorma RTS85 Floor Pivot Set (8850/1 Side Load)

Both 8850 and 8851 supplied. 

8850 - For bottom Rails with channel depth of 18 - 20mm. Floor portion is fitted directly to floor.
8851 - For bottom Rails with channel depth of 18 - 50mm. (Floor portion may be shortened to suit bottom rail) Floor portion of pivot is fitted directly to floor.