Metric reducing hydraulic fitting BB M22x1.5 15L / M16x1.5 10L (XG) WaryńskiMetric reducing hydraulic fitting fitting BB M22x1.5 15L / M16x1.5 10L (XG) Waryński. The fasteners were designed and manufactured in accordance with applicable standards, which describe in detail the quality and dimensional requirements. They are compatible with fasteners from other renowned power hydraulics manufacturers.