A: I believe the Guard wil still fit with this installed.
A: You can go in The Home Depot and go to Quote Center and they can put in a bid for you.
A: Great idea! I would suggest stuffing the leaf strainer into the gutter endcap, not wrapping it around the outside. It may stay on more tightly that way. You should probably check the leaf stainer periodically to check that there are not leaves clogging up your gutter.
A: I placed it inside the gutter for that reason. Just have to clean it every so offten
A: yes !
A: It probably could, but I'm not sure how you would anchor it in place. They are flexible and I think you could squeeze/pinch the bottom open end and be able to fit/wedge it up the end of the downspout to prevent rodents from entering. (If I am understanding what you are trying to do.)
A: It could be used in this application. The mesh can be bent. I think the problem you will have is attaching it to gutter. We sell a gutter guard that is a mesh that is heavier gauge that may work better.
A: These are universal for 2x3 and 3x4. You could use on a 2" if you trim away some of the material and bend back to a circular shape to fit in hole.