DF 1100 Window cranks

A contractor from Oakville says:
I have about 20 of these to replace, could you suggest a replacement.
They are various lengths for different size window but if your able to confirm you have them then I will be in touch with all relevant sizes thank you
User submitted image of their window hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
It appears you have an older style operator with a squared base. Manufacturers have strayed away from this style and are now making these operators with a rounded base. Fortunately, it doesn't affect the function of the hardware whatsoever, it's just an aesthetic change.

There are a few possibilities for you, depending on the length of your arm. Start with the 39-013 and 39-014, which has a 13-1/2" long arm. Also look at the 39-027E and 39-028E with a 9-1/2" arm. These are the most popular arm lengths, but we also has other sizes. If your arm doesn't match either, let me know what size you have and we will try our best to find a good match!
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