The requirement is for modular clamp-together and flanged stainless steel ducting and components used in a complete industrial dust, mist, and fume collection system. The documentation defines the basic physical and operational features required for industrial-grade stainless steel ducting, and double-wall construction has been removed from the scope. The modular design is expected to enable fast setup, easy layout changes, leak resistance, and corrosion protection. Referenced KB Duct part numbers establish the required design standard, build quality, dimensions, and performance. Any substitute items offered must match or exceed these key requirements.