Window crank handle and full mechanism

A home owner from Santa Barbara, CA 93111 says:
See pics. I think they are Pella casement? Year maybe 1999? Need parts for 6 windows.
Thanks
paul
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Tom from SWISCO responded:

This operator looks like it could be either our 39-253LB or 39-438B , depending on the type of slider at the end of the arm. I recommend watching the video below, which will tell you which one to go with.

Either way, we also sell the 39-451 cover/handle.

A home owner from Santa Barbara, CA 93111 says:
OK, will do. Thanks
How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
VIDEO
WATCH >
Comparing the 39-253LB & 39-438B Operators
Comparing the 39-253LB & 39-438B Operators
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
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