2Pcs 3/8″ Male NPT Brass Hex Head Pipe Plug Threaded Fitting Coupler Adapter
Forged from premium, high-density industrial brass, these cored hex couplers are engineered to seal the ends of female NPT threaded pipes and fittings securely. With a robust external hexagonal head that allows for high-torque tightening and a durable, corrosion-resistant body, these adapters provide a leak-free seal for water, oil, gas, and pneumatic air systems.