This 3/8" BSP female thread coupling represents the most versatile mid-range option, perfectly suited to the majority of standard air tools and pneumatic equipment found in professional workshops. The 3/8" BSP parallel thread is the industry-standard size for impact wrenches, ratchets, grinders, die grinders, and general-purpose air tools. Built from hard-wearing steel with zinc passivation for superior corrosion resistance, this coupling delivers exceptional durability under demanding conditions. Tested rigorously to over 1 million cycles, it guarantees reliable performance day after day. The high-flow design ensures maximum air delivery to power tools effectively, whilst compatibility with most popular industrial and European adaptor profiles (including Cejn and Rectus) provides excellent flexibility across different air line systems. Features and Benefits: • 3/8" BSP parallel thread - industry standard size • Ideal for most standard air tools and equipment • Hard-wearing steel construction with zinc passivation • Tested to over 1 million cycles • Compatible with Cejn, Rectus and other European profiles Specifications: Max Burst Pressure: 2030psi (140bar) Max Working Pressure: 500psi (35bar) Nominal Flow Diameter: 7.4mm Temperature Range: -40 to 100°C Test Pressure: 725psi (50bar) Pressure Drop: 0.5bar = 78cfm (2200L/min) Contents: 1 x 3/8" BSP Parallel Euro Coupling Female Thread (Sold Loose)