The Showtec PRO-30 truss is made of 50mm alu-pipe with a thickness of 2mm and 16mm braces.  This is the most used construction system for discotheques, stages, theatres and suitable for many more applications. The PRO-30 is available in following models: 2 point step system (S), 3 point triangle system (T) and 4 points square system (Q). The system elements are joined with help of conical connection coupling. Showtec offers 3 different coupling systems with different compatibility shown in the below overview. All Showtec Pro-30 truss systems are TÜV certificated. To recognize your truss system you can check the diameter at the pin insert part of your spigot.
 
P Truss Compatible with standard Milos truss systems (Ø 29,8mm)
F Truss  Compatible with Prolyte truss systems (Ø 27,8mm)
G Truss Compatible with Global & Euro truss systems (Ø 29,0mm)
 
Each PRO-30 truss item contains connector sets for every side, except one side.