GTFP100-125 meter sockets 1)1.2-1.5mm galvanized steel. 2) ... )Convenient Knockouts. 4)Hubs 1"to2-1/2" GTFP-100/125 Square Meter Box FeaturesStandard meter sockets are manufactured from 1 ... Phase,125A,5 jaw,ringless type324.2219116.2 GTFP-100/125 Meter Box