I was doing good navigating your website on how to choose a window channnel until I got to the last page. It asked what option i need, i.e. B,C,D ? Not sure what you mean by that.
Product Code: S775-18 is what i need as i followed your layout. Shoe size 1.25"
Can you tell me which option B, C, D I need based on my photo attachments? There are 12 photos.
2 Replies
Paul from SWISCO
Dec 5, 2016 11:39 am
The option indicates spring strength. You can usually use the stamp printed on your metal channel as reference, but yours appears to be different than any of the options we have. That probably means your balance was just made by a different manufacturer. I recommend weighing your sash on a scale and referring to the chart shown on the S775-18 store page, that will tell you what will work best.
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