This item is currently out of stock.
Mud daubers and other insects love building nests inside the exterior fittings of RV furnaces, and a blocked vent can affect furnace operation or trip a safety shutoff. JCJ's mud dauber screen covers the outside fitting on M500 series furnace and fan units to keep pests out without restricting airflow.
It's made of stainless steel mesh and springs so it holds up outdoors, and it installs with tension springs plus an included installation tool, no permanent modification needed.
A cheap bit of insurance for anyone who's dealt with a nested-over furnace vent.
