window channel balance

Question

we think that it's a S385-29, but we don't know what option. We have a 29 4 BT Caldwell and a 29 4 BS Caldwell. See attached pics. We also were thinking on parts 15-004, 16-002, and 19-005 to go with this channel balance. Will that be correct?

Bob · Accepted Answer

Thanks for posting. A few notes. I agree this looks like a Series 385 Channel Balance; the only alternative is the Series 380, but if you've measured the nylon shoe depth to be 1-3/32" rather than 1", then it's a Series 385. Please confirm the length of the metal channel, not including the nylon attachments at either end; this measurement should be 30", not 29", in which case you'd need an S385-30, not the S385-29. As far as your stamp option goes, your stamp code of 29 4 translates to our stamp option of 2940. This is for a window sash in the weight range of 23 through 28 lbs. Let us know if you have any other questions.