Wasps, mud daubers, birds, and rodents can nest inside an unprotected RV furnace vent in a single season, causing blocked airflow, ignition failures, and expensive repairs. The Camco 42142 stainless steel flying insect screen drops into place over Hydroflame 8500 Series furnace vents in minutes, creating a durable mesh barrier that keeps pests out without restricting combustion airflow.
Mud dauber nests packed inside a furnace flue are one of the most common causes of RV heating system failure. Camco engineered this screen specifically for the Hydroflame 8500 Series vent opening -- it is not a generic cut-to-fit piece. The precision fit means no gaps at the edges and no need for adhesive or sealant.
The stainless steel mesh resists corrosion through years of road vibration, humidity, and outdoor exposure. The included installation tool lets you seat and remove the screen without reaching into the vent cavity by hand.
Sized specifically for Hydroflame 8500 Series furnace vents -- drops in place and closes over without cutting or trimming.
Corrosion-resistant construction holds up to road vibration, rain, and UV exposure season after season.
Installation tool is included in the box so you can seat and remove the screen cleanly without tools you don't have on hand.
Backed by Camco's limited 90-day warranty against defects in materials and workmanship.
Any RV owner with a Hydroflame (now Suburban) 8500 Series forced-air furnace should have this screen installed whenever the rig is in storage or parked for more than a few days. Mud daubers and paper wasps can begin building nests inside an open vent in as little as 24 to 48 hours in warm weather. Birds will pack dry grass into larger openings. A single blocked flue can prevent the furnace from igniting, trigger high-limit lockouts, or -- in the worst case -- force combustion gases back into the living space.
This screen is designed for the Hydroflame 8500 Series furnace vent opening. Hydroflame furnaces were rebranded as Suburban furnaces; if your rig has a Suburban furnace originally manufactured under the Hydroflame label, check your model number against the 8500 Series to confirm fitment. This screen is NOT a universal fit -- Camco produces separate screens for water heater, range, and refrigerator vents that differ in size and profile.