These are regulator gauge boot(s)for a Taprite regulator. You will need to order two for a two gauge regulator (or more for multiple gauge regulators. These really help protect your regulator, but not as well as the cage. People with 3 or more gauges really like these because the cage is not an option with that setup. The price listed is to one. I show two in the photo for illustration purposes.
*This fits the old style gauges if you have ordered a regulator since the beginning of 2019 this will fit loose and not work for you.*
WARNING: This product can expose you to BPA, 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.