This black polyethylene carrier cap affixes to the end of your 4-inch square RV bumper and securely holds your sewer hose with a bayonet-style locking mechanism. When you disconnect the hose to use it, the cap stays in place with high-strength neodymium magnets. Small airflow holes prevent moisture buildup while also screening insects, and an integrated grip handle makes installation and removal simple.

• Fits standard 4-inch square RV bumpers
• Bayonet-lock hose connection
• Neodymium magnets hold cap firmly in place
• Airflow and insect screen holes built in