PowRyte Basic 1001410 6-Inch Dual Air Chuck with 1/4-Inch NPT Female Thread Fits standard automotive-style stem valves; Can be used to inflate various tires Angled dual head provides inflation from either side and easy access to tire valve stems 6" extension for hard to reach valve stems on trucks and tractors Built-in shut off valve stops airflow when the chuck is not in use Standard 1/4" female NPT threads for air connection