This Valterra tee is a great way to bring together your gray water and black water to a single location. The top has a rotating 3" Valterra valve flange and the side has a rotating 1-1/2" Valterra valve flange. The bottom is a standard Valterra bayonet fitting for a cap and your sewer hose. Its compact height is 5" without valves attached. Valterra PN T1010