Millard Window Operator

Question

I want to replace a Millard window operator.  The number printed on the inside is 0.30800 11:51

Bob · Accepted Answer

Thanks for posting. I believe this is a 39-253LB, with the square-shaped 39-529 track slide at the end of the straight arm. See the video below that explains why this is an important detail. For a new cover and handle, see the 39-451. For a new stud bracket, see the 39-546.