How should I make something like this for my house?
I occasionally run a hose from our grade-level laundry room, out the attached garage entry door, to my RV or power washer. During this time, the door is ajar for quite a while. I am concerned about vulnerability to mouse incursion during this process.
Until now, I have used the doggie door as temporary pass-through for the hose I use to pump-out the RV's holding tanks. This, too, opened our home to potential mouse incursion. Now the dog is gone and the doggie door is probably next.
A nice, easily "cap-able" for security and insulation, pass-through would also work for an extension cord from a portable generator running outside. I believe a cap like that found on the exterior of my RV, on BOTH sides of my unfinished utility room wall, wouldn't be too unsightly.
When Qwest build a huge addition onto the Central Office nearby, they replaced the standby plant with a HUGE generator. It was a total rework. The generator contractor had pass-through, 4-inch diameter tubes built through the brick-facaded structure. Through these elevated, probably 12-inch long tubes, were run the cables that ran from the trailered, dummy load outside, to the new generator installation inside. This, I was told, enabled fine-tuning the new system.
Having such a portal at home would help with a couple of things I do occasionally. One could keep the tube stuffed with old socks as insulation during the lengthy periods of non-use. Ideas? TIA.