Vinyl window spring tensioners

Hi there!

I recommend either our S380-27 or S385-27 channel balances. I know they look almost the same but the important difference is the depth of the bottom fitting. You'll have to measure as shown below to determine the best match. I also recommend the 2630 strength option based on the stamp on the metal channel. 

Comparison of the S378, S380 and S385 balance shoes.

Great! You can place an order for this balance directly on our website whenever you'd like. 

I can't be sure since it's hard to make out accurate dimensions from photos but it does appear that your bottom fitting is over 1" deep.