Milgard Casement Window Operator

Question

I am in need of both the left hand and right hand window operators. I believe they are your part numbers 39-438B and 39-439B. Can you confirm. My measurements match your measurements included in your images of 39-438B and 39-439B. I have a round hole at the end of one of the arms. I can't tell in your images if the hole on your model is also round.

Emily · Accepted Answer

Hello there!

Thank you for contacting us. The 39-253LB and 39-253RB operators are a better match since they use the 39-529 track slider (sold separately). There is a round hole at the end of the link arm as well so that it can connect to a stud bracket. Take a look at the specifications and see what you think.

Please note that the 39-451 and 39-452 handles with covers are sold separately.

Dimensions for 39-253LB

Dimensions for 39-253RB

Alternate image for 39-529

Alternate view with measurements