Shop for the MTM Hydro 1/4" F Brass Ball Valve Kit at Pressure Washers Direct. Research MTM Hydro ball valves online. Find MTM Hydro 20.0027 ball valves & 1/4 inch ball valve 20.0027 features and specifications. Get the best deal; compare MTM Hydro 20.0027 prices now. Buy the 20.0027 direct and save.