JCJ RV Vents
- JCJ®Carded Mud Dauber Plumbing Vent Screen (PV400)Carded Mud Dauber Plumbing Vent Screen by JCJ®. 1 Piece. For "4 Prong" Plumbing Vent. Made of heavy rust resistant stainless steel. Come with tension springs & installation tool. This product is made of high-quality materials to serve...Protective screen keeps out mud daubers, wasps, mice, birds, and other creaturesDoes not not block air flow$8.83