3/8" Tube x 1/4" Male NPT Brass DOT Push-to-Connect Male Swivel Elbow / MOUNTING END TYPE: FLAT END ITEM IDENTIFICATION: MRAP-BUFFALO A1 CONNECTION STYLE: M67B PLAIN (PIPE) 1ST END CONNECTION STYLE: L38 GROOVED INSIDE (TUBE) 2ND END CONNECTION TYPE: THREADED EXTERNAL PIPE 1ST END CONNECTION TYPE: UNTHREADED INTERNAL TUBE 2ND END NOMINAL THREAD SIZE: 0.375 INCHES 1ST END NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES 2ND END PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: STANDARD 1ST END MATERIAL: PLASTIC BODY MATERIAL: COPPER THREAD SERIES DESIGNATOR: NPT 1ST END