aluminum window balancers

Question

My balancers have the number 34 2 Caldwell.  The metal portion of the balancer is 35 inches long.  Would the sash weight be 3420? Just a guess.  Help!!

Casey · Accepted Answer

Hello, Typically yes, a 34 2 stamp will translate to 3420.  To check, remove the window sash and place it on a scale.  A pair of balances with stamp of 3420 will carry a window sash weight of 13 through and including 18 lbs.