25 3 AD Caldwell Channel Balance

Thanks for posting. Could you confirm the length of the metal channel itself, not including the nylon attachments at either end? If it's 26", see either our S380-26 or S385-26 Channel Balances. The only difference between these two balance Series is the 'depth' of the bottom nylon shoe. With the Series 380 the depth of this nylon shoe is 1", whereas with the Series 385 it is 1-3/32". Compare with your own and see what is best.

Once you know which balance to select you must choose a stamp option. Your stamp of 25 3 conforms to our stamp option 2530, for a window sash in the weight range of 15 through 19 lbs. 

Let us know if you have any questions, or if your metal channel length is not 26".