I have been searching for weeping hole covers for my aluminum windows and sliders for quite some time. I called and discussed them since the dimensions on the drawings did not give the distance between the pins.. we agreed that these would work and they did. I think that they will be better than the original covers since they have a flap rather than simply being a cover.
My window weeps were exactly as advertised; I had no problem with billing or shipping. When I needed to re-order more, the second order was as flawless as the first. I was so happy I could find window weeps for 20-year old windows that now look brand new. Great experience.