Regulator washer (NYLON) for use between CO2 cylinder and regulator.
These are used on all of our in house (Chudnow) regulators and on TOF Regulators, however, you do not need to (want to) use this washer on a Taprite regulator because they have a built in O-RING.
WARNING: This product can expose you to Methylenedianiline , 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.