Specifications include, but are not limited to: 375 Each L-868 Class IB, Size B, 20” deep Light Base with 2” DIA. Coupling Conduit Opening at 0-90-180-270 degrees, Int/Ext Ground Straps, 3 Anti-Rotation Fins at 120 degree spacing and ½” Mudplate 0.0 30 Each L-868 Class IB, Size B, 12” deep Light Base with 2” DIA. Coupling Conduit Opening at 0-90-180-270 degrees, Int/Ext Ground Straps, 3 Anti-Rotation Fins at 120 degree spacing and ½” Mudplate 0.0 215 Each L-867 Class IA, Size B, 20” deep Light Base with 2” DIA. Coupling Conduit Opening at 0,-90,-180-270 degrees, Int/Ext Ground Straps and ½” Mudplate 0.0 210 Each L-867, Class IA, Size B, 3 1/4" Base Extension 0.0 14 Each L-867, Class IA, Size B, 1 3/4” Base Extension 0.0 22 Each L-867, Class IA, Size B, 2” Base Extension 0.0 7 Each L-867, Class IA, Size B, 2-1/4” Base Extension 0.0 24 Each L-867, Class IA, Size B, 2 1/2” Base Extension 0.0 75 Each L-867, Class IA, Size B, 3” Base Extension 0.0 65 Each L-867, Class IA, Size B, 3 1/2” Base Extension 0.0 7 Each L-867, Class IA, Size B, 4” Base Extension 0.0 4 Each L-867, Class IA, Size B, 4 1/2” Base Extension 0.0 2 Each L-867, Class IA, Size B, 5” Base Extension 0.0 4 Each L-867, Class IA, Size B, 5 1/2” Base Extension 0.0 2 Each L-867, Class IA, Size B, 6” Base Extension