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Camco 42150 RV Flying Insect and Pest Screen -- Stainless Steel, 4.5" x 4.5" x 1.3"
Camco 42150 stainless steel RV flying insect and pest screen, 4.5 x 4.5 x 1.3 inches, for furnace and water heater vents
Camco 42150 RV Flying Insect Screen - 4-1/2" x 4-1/2"
  
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List Price: $13.99
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Part Number: 42150
Manufacturer: Camco

Quantity in Stock :40

Availability: In Stock
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Camco Stainless Steel Part No. 42150 Camco 42150 RV Flying Insect and Pest Screen -- 4-1/2" x 4-1/2"

Wasps, mud daubers, birds, and rodents treat unprotected RV vent openings as open invitations. A single mud dauber nest inside a furnace or water heater vent can block combustion airflow, create carbon monoxide risk, or trigger a no-ignition lockout. The Camco 42150 stainless steel insect screen installs in minutes and keeps those openings clear all season -- whether you are parked at a full-hookup site or deep in the desert for a month.

Stop Pest Damage Before It Starts

Mud daubers are the most common culprit behind furnace and water heater service calls in RVs. They build nests fast -- sometimes within a single overnight stop -- and their hardened mud tubes can completely obstruct a vent orifice. The Camco 42150 places a fine stainless steel mesh barrier over the vent louver, letting combustion air and exhaust pass freely while keeping insects, nesting debris, and small rodents out.

The screen is sized specifically for the square vent louvers found on Suburban furnaces and 6, 10, and 12-gallon Suburban water heaters, as well as most RV battery compartment vents. No cutting, no trimming -- it either fits or it does not, which makes buying the correct size straightforward.

Stainless Steel Mesh

Corrosion-resistant construction holds up to road wash, rain, and UV exposure across multiple seasons without rusting or losing shape.

Exact Suburban Fit

Engineered for Suburban furnace models 8535, 8531, 8525, 8940 AC, and 8940 DC, plus 6, 10, and 12-gallon Suburban water heater louvers.

Installation Tool Included

The kit ships with a dedicated installation tool so you can seat the screen securely without improvising with a screwdriver or risk bending the frame.

Battery Vent Compatible

Fits most standard RV battery compartment vents, blocking insects and debris from reaching terminals and cables without restricting outgassing airflow.

What Pests Are You Actually Blocking?

The four most damaging intruders for RV vents are:

  • Mud daubers (dirt daubers): Pack vents with rock-hard mud nests within hours. Furnace vent blockage can cause the unit to cycle off on high-limit or produce CO.
  • Wasps and yellow jackets: Build papery nests that restrict airflow and create a sting hazard when you open the access door.
  • Birds: Grass and twig nests in water heater vents are a fire and blockage risk.
  • Rodents: Mice chew wiring and insulation when they get access through vent openings during storage.
Why stainless steel? Plastic mesh screens degrade in UV and become brittle, especially on south- or west-facing sidewalls. Stainless resists corrosion, holds mesh geometry under pressure, and does not shrink or warp when the vent gets hot during appliance operation.

Installation Overview

The Camco 42150 is a push-in friction-fit design. The installation steps are straightforward:

  • Turn off and allow the appliance to cool completely before working near the vent.
  • Clean the vent louver opening of any existing debris or old nesting material.
  • Position the screen over the louver opening, mesh side outward.
  • Use the included installation tool to press the screen frame evenly into the louver until it seats flush.
  • Inspect from outside to confirm the screen is square and fully seated with no gaps at the corners.
Pre-season check: Inspect screens at the start of every camping season and after any extended storage period. Even stainless screens can accumulate debris that reduces airflow. Remove, clean, and re-seat if blocked.
Maintenance tip: Use a soft brush or compressed air to clear dust, cottonwood seeds, and insect debris from the mesh face every few months. Do not use high-pressure washing directly on the screen face, as this can push debris deeper into the mesh.

Fits and Does Not Fit

This screen is sized for the specific louver dimensions of the Suburban appliances listed below. Before ordering, measure your vent opening or cross-reference your furnace or water heater model number against the fitment list.

Camco offers multiple insect screen sizes and shapes for different RV appliances. If your furnace or water heater is an Atwood/Dometic unit, or if your vent opening is round rather than square, verify sizing before purchasing -- this specific part is for the Suburban square-louver profile.
Tip for storage season: Install Camco insect screens before putting your RV into storage. Rodents and wasps are most active in spring and fall -- exactly when RVs sit unused for weeks at a time. A few minutes of prevention avoids a costly service call in the spring.

Product Specifications

ManufacturerCamco
Part Number42150
SKU79-8010
UPC014717421508
Vendor Part No.08-0235

Physical Dimensions

Length4-1/2 in. (4.5 in.)
Width4-1/2 in. (4.5 in.)
Depth1-5/16 in. (approx. 1.3 in.)
Weight3.2 oz.

Materials and Construction

Mesh MaterialStainless Steel
FrameStainless Steel
FinishNatural stainless, no coating
ShapeSquare

What Is Included

Insect Screen1x stainless steel screen
Installation Tool1x dedicated push-fit tool
HardwareNone required (friction fit)

Furnace Compatibility (Suburban)

Suburban 8535Confirmed fit
Suburban 8531Confirmed fit
Suburban 8525Confirmed fit
Suburban 8940 DCConfirmed fit
Suburban 8940 ACConfirmed fit

Water Heater Compatibility (Suburban)

Suburban 6-GallonFits louver vent
Suburban 10-GallonFits louver vent
Suburban 12-GallonFits louver vent
Battery VentsFits most standard RV battery vents

Warranty

CoverageLimited 90-day warranty
Issued ByCamco
Important Information
  • Always turn off the appliance and allow it to cool fully before installing or removing the vent screen.
  • This screen is sized for Suburban square-louver vents. Verify your vent opening dimensions (4-1/2" x 4-1/2") before installing -- forcing an incorrect-size screen can damage the louver frame.
  • Do not operate a furnace or water heater if the vent screen is packed with debris or nesting material. Remove the obstruction before lighting the appliance.
  • This product covers the exterior vent face only. It does not seal the flue or block combustion exhaust -- normal appliance ventilation is maintained.
  • Inspect screens before each trip and after storage. A screen that appears intact from outside may have debris packed into the mesh that is not visible without removal.
  • One screen is included per package. If you need to cover multiple vents (e.g., both furnace and water heater), order additional units accordingly.