coil spring harness

A contractor from pawling ny says:
need 2 sets of a left and right harness. the only number i see is an 8. Which is on the coil spring. I al ready purchased 4 of those.
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Paul from SWISCO responded:

Hello and thank you for writing in. Let's start off with your coil springs. Our S190-840 does look compatible to what you have and can carry a sash weight if eight pounds. Take a look and see if this looks like the correct spring. If you should also need to replace any of the accessories of the coil spring system, I placed a list of those items on this page for you to look over. Take a look and see if these match up to what you have. 

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