The replacement hose for connecting your BBQ, to your propane tank. Don&';t be scammed into getting a whole new BBQ. That is, unless you want an upgrade. WARNING: This product can expose you to chemicals including lead and lead compounds which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov Regulator with Applianceend fitting and Acme Nut 3/8" Female Flare ForType 1 - QCC-1A(C) gasgrill systems