Wirthco RV Locking Bumper Plugs 4" - 300007
Securely holds sewer hoses in place Fits standard 4 inch bumper No drilling or welding required Push in center to lock Weather and UV resistant WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov