series 170 409

Professional from Portugal

Apr 2, 2025 9:54 am

the 409 is for a weight of 9lbs. we need this reference 170 409 to 9lbs, but we also need to 12lbs and 14lbs. It is possible?

4 Replies

Lauren from SWISCO

Apr 7, 2025 10:59 am

Hello, thank you for posting,

Are the original springs marked with 12 and 14 or is this the weight of the window sash? Is this a single or double coil setup?

Can we see pictures of the original coil balance assembly? Thank you!

Professional from Portugal

Apr 7, 2025 11:20 am

Dear Lauren
You are right, the original springs to 12 and 14 pounds have double coil. Do you have this kind of springs?
Best regards

Lauren from SWISCO

Apr 7, 2025 3:12 pm

Is the total weight of the window sashes 12 and 14 pounds or are they 24 and 28 pounds? Can we see pictures of the original setup?