Description of Prolyte: H20LB Series truss is constructed with both main tubes and diago­nals (48,3 x 3 mm). Equipped with the CCS6 conical coupling system, the H20LB truss is fast and easy to assemble. The H20LB truss is a frame girder, without diagonal bracing and with rigid joints between top and bottom chords and verticals. The H20LB is designed to create matrix frames for circumstances with low headroom, like studio installations. Standard box corner ribs make it a complete and flexible system.