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Allegro 9520-05M 8" Gas Centrifugal Blower System w/ 8" MVP (9505 Blower - Briggs & Stratton)

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Allegro Safety's 9520-05M is a complete ventilation system that includes all the most-asked-for equipment on confined space sites

Allegro 9505 Gas Blower offers 2 ports for positive ventilation or fume extraction 

Powerful 5 HP Briggs & Stratton engine making this the perfect system for job sites or locations where electricity may not be available

Industrial ventilation system includes six feet and fifteen feet of ducting with a storage bag and a Manhole Ventilation Passthru (MVP)

Allegro's centrifugal blower system offer lightweight portability with the highest output available

Smart compact design allows for easy use and storage without sacrificing airflow



  • 8” (20.3cm) flange on intake and exhaust side
  • Tough “safety orange” polyethylene construction
  • One piece housing with integrated handle
  • Black powder coated 12 gauge steel base
  • 8-blade cast aluminum fan impeller
  • 6’ (1.82m) inlet duct extension
  • Steel black powder coated grills
  • Equipped with five rubber feet


  • 5 HP, gasoline powered (170cc)
  • Four stroke cycle
  • Air cooled
  • 3.5 quart (3.31 liters) fuel tank
  • Pull start



  • Aluminum, eight blades

DUCTING: (Optional)

  • Yellow, single-ply lightweight vinyl/polyester, PVC coated
  • 180°F (82.2°C) temperature resistant
  • Retractable, non-collapsible design
  • Hard drawn spring steel wire helix, ASTM 227 Specs

19" L x 20" W x 21.5" H

63 pounds


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