The DANCO 0 - 15 psi 1/10 Increment Compressed Air Test Gauge tests up to 15 psi using 1/10th increments. The gauge is designed to fit onto 3/4 in. MPT threads. It is intended for use to gauge the pressure of the compressed air in your tank. The durable plastic face has a clear display that help you openly see the pressure measurement. The body of the gauge is chrome-plated for safety and the gauge comes in a sturdy steel case for easy use and storage.