| 5-piece G-Style coupler and plug kit Includes 3/4" MNPT x 1/2" FNPT reducer bushing 1/2" basic flow size, max 99 SCFM airflow Supports up to 300 PSI and 250°F Durable steel, plated to resist rust and corrosion | Case-hardened steel plugs for long life Ideal for high-volume air shops and pneumatic use Compatible with 1/2" male and female G-style couplers Two critical profile tip sizes: .125 & .375 Easy installation for new or replacement air hoses |