This gauge reads from 0 to 2000 PSI. It is a replacement regulator gauge for reading the pressure of your CO2 Tank. Has an "Order Gas" indicator section. Right hand thread. This fits our in house regulators(Chudnow) WARNING: This product can expose you to lead, which is known to the state of California to cause cancer, birth defects and other reproductive harm. For more information go to: www.P65Warnings.ca.gov. Shipping rate is for the Continental US ONLY/