Male to Female Union Type Hazardous Location Application Used For Connecting Conduit to Enclosure Color Silver Length In. 2.16 Material of Construction Aluminum Conduit Size In. 3/4 to 1/2 Standards UL 886 C22.2 No. 25 C22.2 No. 30 UL Listed for Class I Division 1 and 2 Groups A B C D Class II Division 1 and 2 Groups E F G and Class IIIFeatures:Material of Construction-Aluminum Conduit Size (In.)-3/4 to 1/2 Standards-UL 886, C22.2 No. 25 amp; C22.2 No. 30, UL Listed for Class I, Division 1 and 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; and Class III WARNING: California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.California proposition 65 warning