The part in the photo isn't offset the first bar the second part the end is offset. The color is white and the brand is Truth. If you need further information please contact me
Replacement
Quick Learner from NY
Oct 3, 2026 5:27 pm
2 user uploaded images
2 Replies
Bob from SWISCO
Oct 5, 2026 1:05 am
Hey there. This looks like the 39-172 and 39-171 Dyad Operators. However the link arm is 5" long on these; yours appears 4". We don't have a version of these operators with shorter arms. You have a few options. First, you could try installing as is--it might work. Second, try repositioning the stud brackets on the sash to make up the difference. If all else fails, you could swap out the link arms using a rivet like the 62-014B. See what you think.
Dimensions for 39-172
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