A contractor from Carroll County Md./ Westminster Md. says:

County inspector said we need these to pass inspection.

He said they allow the window open 4-5 inches then has to be pushed in to allow to rise further.

How quickly can I find and receive 5 sets.

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Casey from SWISCO responded:


Take a look at our 26-387 vent latch kit. I think this may be something like what you're looking for. We also have a helpful video that will show you how it works and installs. This sash limiting device has been tested and complies with the ASTM F2090-2008 and 2010 code.

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