Window balancer for double hung and guide for locking rod

A quick learner from McKee's rocks pa 15136 says:
Can yous help me with these thanks
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A quick learner from McKee's rocks pa 15136 says:
Weight of the window is around 15lbs
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Paul from SWISCO responded:

Thank you for sharing your information and photo with us. You should be able to go with two of the S152-7 coil springs ( for a 14 pound sash) and or two of the S152-8 coil springs (for a 16 pound sash). It is up to your discretion on which set of coils you want to go with. We also placed a list of coil spring accessories on this page for you to look over. 

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