The PARKER - 12-4 RB-SS is a stainless steel reducing bushing designed to connect pipes of different nominal sizes by reducing a 3/4 inch male NPT connection to a 1/4 inch female NPT connection. Made from 316 stainless steel, Media compatibility is not specified by the manufacturer; use within the specified temperature and pressure limits. Overall length: 1.17 inches, with a silver finish and a hex size of 1-1/8 inches for wrench tightening. The fitting conforms to ANSI standards B31.1, B31.3, and B1.20.1 and Operating temperature range: -425°F to 1200°F. It is rated for a maximum operating pressure of 6,400 psi. Key Features: - Pipe Size: 3/4" male NPT x 1/4" female NPT - Material: 316 Stainless Steel - Maximum Operating Pressure: 6,400 psi - Operating temperature range: -425°F to 1200°F - Connection Type: MNPT x FNPT - Hex Size for wrenching: 1-1/8" - Overall length: 1.17 inches - Standards: ANSI B31.1, ANSI B31.3, ANSI B1.20.1 - Pre-applied Thread Sealant: No - Includes Seal: No