I am replacing a pair of channel balances marked UNIQUE 26-B-20 and have identified your 380-27 Series as a good match. I weighed the sash and it is 18.6 lbs and would like advice on which weight option is likely to be best, the 2630 or 2640? Thanks
Tom from SWISCO responded:
March 1, 2018
If your sash is 18.6 pounds, I would definitely go with the 2630. The weight range for the 2630 is 13 through 19 pounds, and 18.6 is well within that range.