B) Downsides: More expensive than Do it yourself and should include scheduling delays according to the availability from the service vendors. Hello! To install the 39-310 clip, you will have to slip it onto the underside/inside of the glass louver. Both ends on the clip have an angle bent in https://cruz6aiqy.topbloghub.com/38353275/the-best-side-of-how-to-install-securit-glass