Series “A” represents the progress of Stucchi technology and quality applied to flat-face couplings. The series’ internal design, along with a high-resistance material, allows for increased operating pressure with minimum pressure drop. The modular structure gives for the option of offering a variety of threads or unique ports to meet a wide range of applications while remaining compact in size. These properties make series “A” couplings the market leader in many hydraulics applications that require excellent performance while eliminating fluid loss and pollution in the circuit.