The EM2S-LR(0202) 5/16 X 3/8 from Field Tool Supply is a versatile coupling designed for efficient fluid transfer. With a 5/16 inch inner diameter and a 3/8 inch outer diameter, this coupling is perfect for various applications in plumbing and hydraulic systems. Made from high-quality materials, it offers excellent resistance to corrosion and wear, ensuring a long service life. This coupling meets industry standards for performance and safety, making it a reliable choice for both professional and DIY projects. Its easy installation and secure fit make it a must-have for any toolkit.