Channel Balances required for 3 NuAir 3'0" x 5'0" single hung insulated glass windows

A quick learner from New Smyrna Beach says:
Existing balances marked "J 2444#", metal channel is 1/2" wide and 25" long excluding the plastic end pieces. The sash weighs approximately 22 pounds.
Channel balance
Profile picture of Tom
Tom from SWISCO responded:
Thanks for shopping with us. It looks like you need either the series 380 or Series 385 balances. The difference lies in the shoe. The series 385 balance has the 15-004 shoe which is 1 1/32" deep from front to back. The Series 385 has the 15-005 shoe which is 1" deep. If you measure your shoe you should be able to determine which one you need. Please let me know if you have other questions.
A quick learner from Florida says:
Which is the shoe and how should I measure it? I would not expect 1/32" to matter very much.
A quick learner from Florida says:
What is the lead time for 6 of either of these parts?
Profile picture of Mike
Mike from SWISCO responded:
My apologies, I mistyped. The 15-004 shoe measures 1-3/32" from front to back, not 1-1/32". You're right about 1/32 not making a difference; 3/32 just barely does! The shoe is the bottom plastic piece, shown in the center photo above. You'll want to measure it like this:
Close up of the S385 balance bottom.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)