3/16" x 1/4" Brass Female NPTF Compression Adapter 62RCB Use this 3/16" x 1/4" brass female NPTF compression adapter with copper, aluminum, and thermoplastic tubing. Not recommended for steel tubing. Manufactured for low and medium pressure tubing connection work where excessive vibration or tube movement is not involved. Not recommended for application using gaseous media. Features • 3/16" x 1/4" • Temperature range: -65°F to +250°F (-53°C to +121°C) • Tolerance: +/- .02 • Meets specifications and standards of ASA, ASME, and SAE • Contains lead