JCJ Enterprises Mud Dauber Screen Square SS Bug Screen For Hydroflame 8500 Furnaces M-500 08-0249

Measures 4-3/4 inch length x 4-1/2 inch width x 1-1/4 inch height.Wire mesh screen includes tension springs & installation tool. It eliminates costly repair caused by mud daubers, wasps, mice, etc. The screens will not block air flow to & from the appliance.