The 3/16 in pilot and flat "V" shaped ball groove plug design is considered the standard because it has been adapted by most coupler manufacturers. Couplers are available in standard and push-to-connect style sleeves. Push-to-connect styles are for permanent wall mounted connections.
| Connection Type | : | FNPT |
| Material | : | Brass |
| Nominal Size | : | 1/4 x 3/8 in |
| Pressure Rating | : | 300 psi |
| Type | : | Industrial/Milton Style |