Window Channel Balances

Question

I need to replace two window channel balances. They are 28" long (metal channel only, not including the plastic fittings) and stamped 2703. The outside channel-width is 9/16" (considered 1/2", your website says). They house a spring and pulley (block-and-tackle balance). They come assembled with a winged top guide and winged bottom shoe. In 2016, I special-ordered some from Home Depot (they no longer do that and recommended I contact you). Here's the info from my 2016 receipt: SKU: 0000-782-092 / Description: Channel Balance S/O Primeline Products / FA2730 - FS293BA / Qty: 2 / Price each: $12.50. Do you have anything I can replace these with? Thank you for your help.

Tom
P.S. I looked through all your half-inch wide series of channel balances and didn't see anything that matched mine.

Bob · Accepted Answer

Hey Tom. At first glance I think this is either an S380-28 or S385-28. The only difference between these two channel balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. See the diagram below for reference. Compare both with your old hardware to see what matches best.

Comparison of the S378, S380 and S385 balance shoes.

You also have to choose a stamp option, which designates the balance's strength. Can you double-check the stamp on your old balance? If it's actually 2730, then that's the stamp you would select. If it's indeed 2703, please weigh the window sash the balances support. You can use that exact weight to select the correct stamp option.