Milestone window balances

Question

Hello- I need some channel balancers for a Milestone single hung series 1000. The metal channels are 29 inches long and are stamped UB28D.The sash weight is 27.2 lbs and I was wondering if i should go for the S380-29 option 2840 or 2850?

Tom · Accepted Answer

I would go with 2840. Two balances with this option can support 23 through 28 pounds. The 2850 option will likely be too strong.