Ualco

A contractor from Alabama says:
September 28, 2020
I'm looking for Ualco handles. There are two sizes in the house- the spindles/splines appear to be 5/16 on smaller windows and 3/8 on larger ones. I can't find the size of the spline on the Ualco part descriptions. Help?
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Bob from SWISCO responded:
October 1, 2020

Hello there. The 39-243L has a hole diameter of 3/8". I had one of my colleagues check the spline diameter of the 39-243, since it is not presently listed on the website, and he confirmed that it is also 3/8". Let me know if you have any further questions. 
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