Mud Dauber Screens keeps pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances. These stainless steel screens and springs will not block air flow to and from your furnace. Installs easily w...

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Mud Dauber Screens keeps pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances. These stainless steel screens and springs will not block air flow to and from your furnace. Installs easily with tension springs and installation tool (included).

  • RV furnace and fan unit outside fittings
  • Fits M500 series
  • Length: 4.75", Width: 4.5", Height: 1.25"
  • RV furnace and fan unit outside fittings
  • Fits M500 series
  • Length: 4.75", Width: 4.5", Height: 1.25"

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