The Valterra EZ Coupler Silverback BASIC Bayonet Sewer Fitting offers a versatile and reliable connection for your RV sewer system. Featuring a universal threaded design with a standard bayonet end, it fits six different types of sewer connections with a secure, gas-tight seal. The quick twist attachment and clear housing allow for easy use and visual confirmation of clean tanks, making it a must-have for RV enthusiasts. Key Features:• Universal threaded sewer fitting with standard bayonet end• Fits 6 different sewer connection types with gas-tight fit• Quick twist attachment for easy and secure connection• Threads available in 3", 3-1/2", and 4" sizes• Clear design for visual confirmation of clean tanks• Compact size for convenient storage Easy, quick twist attachment saves time Clear design lets you see when tanks are empty Compact & lightweight for easy storage & transport | Valterra EZ Coupler Silverback BASIC Bayonet Sewer Fitting, Straight, Clear/Red