Windows balance double roller tilt. 9 and 7

A home owner from Plymouth. MA says:
May 16, 2023
Hi do you have this type of windows balance?
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Casey from SWISCO responded:
May 17, 2023

Hello,

I would recommend starting by comparing the specifications of the S161-09 assembly to yours. It looks like your balance assembly supports 19 pound on both sides, so you would also need to use the S180-10 coil spring with the 15-086 housing. See the dimensions and diagram below to confirm. Thank you! 

Alternate image for S161-10
Alternate image for S161-10

Series 180 coil balance diagram
Series 180 coil balance diagram
Tandem Coil Housing
Tandem Coil Housing
15-086
$1.68
9 lbs Series 161 Roller-Tilt
9 lbs Series 161 Roller-Tilt
S161-09
$6.97
10 lbs Series 180 Coil Balance
10 lbs Series 180 Coil Balance
S180-10
$5.35
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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