Western Enterprises Female NPT Outlet Adaptors for Manifold Pipelines Female NPT outlet adaptors for manifold pipelines have a LH or RH thread direction. Female adaptors can withstand pressures up to 3000 psig. Adaptors can be used with oxygen gases. It is made of a brass material for maximum durability. Pack of 1 WARNING: This product can expose you to Lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov - Lead