Highlights: Yellow brass Used with brass, copper, aluminum and steel hydraulic tubing that can be flared Connections for natural gas, air, petroleum and fuel oil Use with higher pressure than compression fittings This product contains less than 0.25% weighted average lead content on wetted surfaces Warning: This product can expose you to chemicals including Lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P583Warnings.ca.gov.