The only screens we recommend are for the furnace. Putting screens on the refer access covers has been found to cut air flow and Dometic has advised us they would void a warranty claim if customer uses them.
Both Dometic and Norcold recommend flea collars. 2 in the lower refer area and 1 in the water heater front area
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.