Certainteed - Bryn Mawr II double hung window [25lbs. bottom sash]

Handy Person from stone harbor, nj
top coil stamped 409 J
bottom coil stamped 408 J
shoe stamped A1-87598

...bottom sash weighs 25lbs.

What are the correct coil balance part numbers

171 - ________

cover _______

170 - ________

cover ________

shoe ________

screw _______ to screw coils 170 & 171 into the shoe

thank you. Lisa
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2 Replies
Casey
Casey from SWISCO
SWISCO
Expert

Hello,

I agree that your photos resemble our 15-192 pivot shoe, which uses our Series 170 and Series 171 Coil Balances. For a 25-pound window sash, I would recommend using one S170-406 and one S171-406 on each side of the window. 

The corresponding covers and screws can be found under the related items section of the coil balance product pages. Thank you!

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