Click to expand Tap to zoom Insect Screen VNT-W400 Description Description Protect Your RV Ventilation Systems From Insects Mice And Pests. Ventmate Insect Screens Prevent Pests From Entering And Nesting Inside Your Vented Appliances And Maintain Maximum Air Flow. 6-3/4" L x 6-3/4" W x 1-5/16" Depth Call For Availability (855)867-1433