WINDOW BALANCER "31 5 EL CALDWELL"

Contractor from Medford, Oregon

Jun 9, 2025 3:06 pm

We are looking to replace window balancers on non-tilt windows, 2 each for 4 windows (8 total). Can you help me identify the correct part to order? Many thanks!

5 user uploaded images

4 Replies

Tom from SWISCO

Jun 13, 2025 2:33 pm

Thanks for your photos. Based on what I see here, you have either our S380-32, S385-32, or S378-32 depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

Comparison of the S378, S380 and S385 balance shoes.

Contractor from Medford, Oregon

Jun 13, 2025 3:53 pm

Hi Tom, this is great! Can you tell me from the stamp on the metal "31 5 EL" what weight the pair of balances can support? Thanks!

Tom from SWISCO

Jun 16, 2025 9:17 am

Sure, your old stamp of "31 5" very likely matches our 3150. A pair of balances with that stamp can hold 28 through 32 pounds. If you have any doubts, you can always weigh your sash to be sure. We have a chart on each balance's store page that tells you precisely how much weight each option can carry.