After seeing the nice stainless steel vent cover installed by @ChanW
in the topic "Alde exterior vent cover", I installed one right away.
I also realized that pest screens are the perfect solution for permanent protection for frig & plumbing vents too. So I ordered a couple of these too..
Camco 42156 Flying Insect Screen for Norcold Refrigerator Vent https://www.amazon.com/dp/B01J6DMJ0U
I couldn't find any to fit our approx 5x13" frig vents, but I was able to cut these down to fit..
I cut them to this shape, so I could fold in the sides & top (at right) along the black lines to fit the opening..
Arrows indicate slots that fit around support tabs in the plastic housing. I took extra care to fold each cut wire over so the screen would not come apart & to make it a bit less dangerous. Gloves were needed, as the wire is very stiff & metal edges can be sharp as well.
Here you can see where the pre-cut slots fit around the plastic tabs.
This shows how the finished screen slides up into the top of the vent frame. Note that the inside edge of the frame has a lip around the sides & bottom which supports the folded corner of the screen on the sides & metal edge at bottom and prevents the screen from falling through the opening. So, it is important to get the right width for a snug fit.
I had enough screen material left over from the frig vent to cover the plumbing vent pipe..
Easy to remove the 3 screws & vent cover to expose the end of the pipe.
I first drew a circle on the screen with a marker to match the outer edge of the pipe.
I used needle nose pliers to bend each wire over to prevent unraveling the small piece of screen.
I used a scrap of PVC pipe of the same diameter (1.5" I believe) so I could test fit the screen as I worked on it indoors. Final step was to bend the screen slightly into a concave shape to fit snugly.
The finished job before replacing the plumbing vent cover. This was much easier than the frig vent screens, because the wires are quite stiff, so bending takes time when there are a lot of wires.
Glad that we now have permanent year-round wire screen covers for all of our exterior vents - a few less things to remember for winter storage, plus protection during camping season when the mud daubers are active during summer.
-Brian in Chester, Virginia
TV: 2005 Toyota Sienna LE (3.3L V6)
RV: 2018 [email protected]
320S, >70 mods