Description
Allegro 9520-04M 8″ AC Standard Blower System with 8″ MVP (9504 Blower) is a complete, all-in-one ventilation kit ideal for confined space entry and maintenance. This system includes Allegro’s most popular 9504 Centrifugal Blower, a Manhole Ventilation Passthru (MVP), and both 6′ and 15′ ducting with a convenient storage bag—providing everything needed to ensure safe and efficient air movement. The compact and lightweight design makes it easy to transport while still delivering high-output performance in industrial environments such as utility vaults, tanks, and sewers.
Features:
- Complete system includes 9504 blower, MVP, 6′ and 15′ ducting, and storage bag.
- Manhole Ventilation Passthru (MVP) allows efficient and low-profile air entry into confined spaces.
- 9504 centrifugal blower delivers powerful, high-volume airflow in a compact design.
- Flexible ducting easily collapses into included storage bag for portability.
- System is lightweight and easy to deploy on-site with minimal setup required.
Benefits:
- Improves air circulation and removes harmful fumes from confined spaces.
- Reduces setup time with an all-in-one, ready-to-use system.
- Enhances worker safety by maintaining air quality in hazardous environments.
- Meets common requirements for industrial and municipal confined space work.
Technical Specifications:
- Model: 9520-04M
- Blower Type: 9504 AC Centrifugal Blower
- Ducting: Includes 6′ and 15′ ducting with storage bag
- Manhole Ventilation: 8″ MVP (Manhole Ventilation Passthru)
- Application: Confined space ventilation






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