EZ Coupler 90° Bayonet Sewer Fitting, Clear

This universal-threaded sewer fitting features a standard bayonet end and accommodates six different types of sewer connections with a gas-tight fit. Easy, quick-twist attachment. Threads are 3", 3 1/2", and 4" to fit most common sewer ports. Clear construction lets you easily and quickly know when your tank is full and in need of cleaning.