Milgard vinyl window balancers

A handy person from Haiku, Hi says:
Greetings oh wise ones. From one of the photos you might see "caldwell 32 4 AT". I verified the 32" length.
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Bob from SWISCO responded:

Thanks for writing in. This looks like a Series 380 or Series 385 Channel Balance. The only difference between these two balances is the 'depth' of the bottom nylon shoe, so compare both with your old hardware to see what matches best. Can you confirm the length of the metal channel? Do not include the nylon fittings in this measurement. Typically balances stamped '32 4' would be 33" long, so it's best to check to be safe before proceeding. Many thanks.

A handy person from Haiku, Hi says:
You are correct sir! I stand corrected on channel length, 32.5" is it and the foot depth is 1-3/32"ish so it is the Series 385. I'm recovering from the flu, that's my excuse for the 32" vs 32.5" issue! And the end of the channel is all rusty...excuse #2.

Many thanks to you Bob. Order going in within the week.
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Bob from SWISCO responded:

Hey there! I'm recovering from the flu myself so I understand how it can addle the senses. That said, is there another balance in this set that you can double-check that metal channel length on? It really should be 33" exact, not 32-1/2". A balance ending in an X-1/2" increment is not unheard of but rare. Let me know what you find before ordering. Thanks!

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