Material:  Brass as standard

Application:  Used as a conduit pipe fittings 

Size Metric :  2Omm to 50 mm
                     Imperial : 3/4" to 2" (Short and long patterns)

Material:  High grade brass 

Application:   Used as a means of providing attachment for flexible tubes. 

Size Metric:  12mm to 50 mm (Standard combinations) 
                     Imperial : 1/2" to 2" (Standard combinations)