33C is stamped on the channel

Question

The only marking or indicator I can find is 33C stamped on the channel balance. Should be able to see it in the picture.

The metal channel measures 34" long.

Not sure how much the sash weighs at this point.

Emily · Accepted Answer

Hey there!

Thanks for reaching out to us. The balance in your photos reminds me of the S351-34 and S390-34. The best match depends on the depth of the bottom fitting so you'll have to measure as shown below.

Your stamp doesn't match up with any of our options, however. It may translate to the 3330 stamp option. A pair of balances with this stamp can support a sash weighing 18 to 23 pounds but you can weigh the window sash to confirm.

Comparison of the S351 and S390 balance shoes.