This Allegro complete ventilation system contains Allegro's new Manhole Ventilation Passthru (MVP) which allows workers to enter and exit the manhole opening without having to remove the ducting each time. This system is easily and quickly set up. Included in this system are a high output blower, six feet or fifteen feet of ducting with a storage bag, and the MVP. The system offers lightweight portability along with the highest output available.

• Complete ventilation systems
• Six feet and fifteen feet of ducting with a storage bag
• Lightweight portability
• Includes new MVP