Waryński hydraulic quick coupler (Adaptation of the old type 504900) - EURO long socket (long thread with a locknut. External thread on the quick coupler body with nuts adapted for installation in old type tractors. Quick couplers are designed in accordance with the dimensional and quality requirements of the ISO 7241 Series A standard, which specifies in detail the characteristics and dimensions to enable compatibility of quick connectors produced by different manufacturers in accordance with this standard.