28" 2740 & 2730 window balance winged guides

Thanks for posting! Your channel balances can be replaced with the either the S380-28 with a 1" shoe or the S385-28 with a 1-3/32" shoe. To be sure of which replacement is right for you, confirm the measurement for the depth of your bottom shoe.

Since you have two different stamps here, it may be a good idea to confirm the weight of the sash; especially if the balances were removed from the same window.

Comparison of the S380 and S385 balance shoes.