Plastic Blower System with MVP

Blower specifications:

  • Free air : 831 CFM
  • One 90° bend : 709 CFM
  • Two 90° bends : 586 CFM


Complete Ventilation Systems include everything you’ll need for your confined space site. Included is the lightweight plastic blower of your choice, 6′ & 15′ of ducting with a storage bag, and a Manhole Ventilation Passthru (MVP).

The first manhole system that combines the low profile manhole air vent, 90° elbow, and built-in mounting all in one unit. This unit comes with a collapsible duct, for easy entry, stored in a small storage bag that can be dropped into the manhole with a quick release of the drawstring. The Collapsible duct springs back into shape once the worker is down into the manhole. The ducting is vinyl and polyester with PVC coating, heat resistant up to 180° F, meets ASTM 227 specs, and is UL 94V-0 flame retardant. The manhole cover fits into a flat channel corner for stabilization. Compact, lightweight, and made from Linear Low-Density Polyethylene (LLDPE), this unit is easy to store and ships in one small carton. Recyclable.


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