Plygem windows installed 2016

A quick learner from blairsville Ga. says:

on the plastic piece is the number 13.

on one spring is: #6.5 35"

on the other spring is: 6.5 35"V8W1 Z second line" NOV/30/15/ 6

please advise what I need.

Thank you Wayne

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Bob from SWISCO responded:

See our 15-252 Dual Support. This uses Series 160 Coil Balances. A stamp of 6.5 suggests that you need two of the S160-6 6.5 pound coil springs. Let me know if you have further questions.

A quick learner from blairsville Ga. says:
Thank you for the quick reply. I'll look those up and get a few ordered. Thank you again
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