WOCD for double hung Marvin window

A home owner from Sudbury, Ma says:
June 20, 2019
CAn you please ad use which of your products would best fit a Marvin double hung window which is I already installed

Thank you
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Bob from SWISCO responded:
June 24, 2019

Thanks for posting. I'm afraid this hardware is very brand-independent, so I can't say for sure what you need based off manufacturer identity alone. That said, take a look at our 26-387 and 26-434. Look over both kits and let me know if you think one of these is what you need. 
Face Mount Single Action Vent Latch Kit
Face Mount Single Action Vent Latch Kit
26-387
$17.55
Double-Hung Window Opening Control Device Kit
Double-Hung Window Opening Control Device Kit
26-434
$55.07
How to install a Window Opening Control Device (WOCD) kit
How to install a Window Opening Control Device (WOCD) kit
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