M300 Mud Dauber Screen-Fits Suburban & Duotherm-3in Dia-2/Pk.
Mud Dauber Screens protect your furnace by keeping out mud daubers, mice, wasps, frogs, birds and spiders. These stainless steel screens and springs will not block air flow to and from your furnace. The package comes complete with tension springs and an installation tool. This makes installation very simple.
Mud Dauber Screens May Prevent Costly Repairs.
You would not believe how many costly furnace repairs are caused by mud daubers and wasps. These inexpensive and easy to install screens are your best protection against costly furnace repairs. If you do not have mud dauber screens to protect your RV furnace, you should add them immediately before mud daubers and wasps have a chance to cause to expensive furnace repairs.