Window crank..

A quick learner says:
May 26, 2020
Hello..

Please verify if this window crank is a 39-188? the Arm measures 5" and the mounting spread is 5" but looks like the inner part is more like 3" ?
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Casey from SWISCO responded:
May 29, 2020

Hello,

It looks like you received the 39-089 but your original operator is a closer match to our 39-187. The main difference between the tightness of the zig-zag in the base arm. Take a look and let us know if you have any other questions. Thank you!
Crank Hand Knob, 11/32"
Crank Hand Knob, 11/32"
39-115
$17.24
Window Dyad Crank, 5"
Window Dyad Crank, 5"
39-089
$43.70
Sash Dyad Crank, 5"
Sash Dyad Crank, 5"
39-187
$37.10
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