PQ30 Multicube Connector M. The Milos PRO-30 truss is made of 50mm aluminum pipe with a thickness of 2mm and 16mm braces. This is the most used construction system for discotheques, stages, theaters, and many more applications. The PRO-30 truss is available in the following models: 2 point step system (FS, GS, PS), 3 point triangle system (FT, GT, PT), and 4 points square system (FQ, GQ, PQ). The system elements are joined together through conical connectors and spigots. Milos offers three different coupling systems with varying compatibility. All Milos PRO-30 truss systems are TÜV certified. F-truss is compatible with Prolyte systems (Ø 27.8mm). G-truss is compatible with Global & Euro systems (Ø 29.0mm). P-truss is compatible with standard Milos truss systems (Ø 29.8mm). Each truss piece (length or corner piece) is always delivered with a complete connection set (spigots, pins, and R-springs) for one side. The black truss we offer is powder-coated with color RAL9005.