Pella roto operator only for right hand, no handle, no cover.
Pella Primed Wood or Clad Casement 1967 to 1993.
Handed: Yes; Left and Right
Split Arm: 6-1/8 inch (bracket on end)
Middle Link: 5 inch (to center of rivets)
Note: Old style Pella Designer series had round breather holes. Newer ones were square.How to Change Out Your Pella Roto Operator (Video | Article
This product is similar to or the same as the following part numbers in these brands:
Strybuc Industries: 900-8865