Sash balance : SWISCO.com

Quick Learner from Palo Alto, CA

Aug 5, 2023 3:55 pm

15 inch track (not counting plastic end caps)
marked: 14 4 KN Caldwell
rounded plastic end cap at end with pulley
pointed plastic end cap at end with spring

Missing the small ropes and hook that attached to window sill

5 user uploaded images

4 Replies

Emily from SWISCO

Aug 7, 2023 3:53 pm

Thanks for reaching out to us! It looks like you want either the Series 380 or Series 385. The best replacement will depend on the depth of the bottom fitting as shown in the photo below. I also recommend the 1440 strength option based on your stamp.

Comparison of the S380 and S385 balance shoes.

Quick Learner from Palo Alto, CA

Aug 7, 2023 6:20 pm

Thanks Emily ;-). I think it is the 1 3/32 ( so tiny ) version, i.e. 385 -- so I will order. My window seems to only have one, not two (on the other side) -- is that normal?
thanks,

George

Emily from SWISCO

Aug 8, 2023 8:26 am

No problem! I'm happy to help. That's not normal, no. A window should have a balance on both sides. A pair of balances with the 1440 stamp can support a window sash weighing 12 to 13 pounds so you may want to weigh yours on a scale to confirm.