This Valterra Bladex Waste Valve has a 3" diameter opening that allows wastewater to flow freely when the valve is open. The drilled stem design allows you to attach a flexible cable (not included) for easy operation.• Fits Bladex, Valterra, Bristol, and Anonda valves• Includes seals, nuts, and bolts• 3" diameter opening• Drilled stem for attaching a flexible cable 3"" diameter opening Drilled stem for attaching a flexible cable | Valterra Bladex Waste Valve, 3", Drilled Stem, No Handle