Casement window crank handle replacement

A handy person from Kailua Kona, HI says:
Greetings! 22 year old casement window crank handles, with a 5/16" female hex drive. No names or markings visible on the handle but the window manufacturer was "Insulate", I believe. I need replacements in "white". Thanks for your assistance!
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Casey from SWISCO responded:

Hello,

Take a look and compare our 32-230 handle to yours. Thanks for posting!

39-230 : White Handle w/ Set Screw, 5/16
White Handle w/ Set Screw, 5/16" Hex
39-230
$16.46
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