Product Description The Husqvarna BT 90 Pneumatic truss screed is engineered to handle floors, up to 20 meters wide, runways and bridges that need compaction, leveling and finishing. Easy to assemble by a single operator and adjust camber. Many configurations possible with accessories, such as winches and outriggers, to cover your day to day needs. THIS MODEL RUNS ON AIR AS THE HONDA ENGINE IS NOT INCLUDED. Owners Manual see page 13 All products specification BT 90 Pneumatic BT 90 Pneumatic Complete Set 967 94 11-08 Complete Pneumatic Set (This part number) 805544283199 Engine Motor/engine model NA / AIR COMPRESSOR REQUIRED AND NOT INCLUDED Output power (As rated by the engine/motor manufacturer) 6.7 hp Power source Air Does not include the center truss section needed based on your wall / floor size.