Allegro Manhole Ventilation Passthru (MVP)


Manhole Ventilation Passthru - Replaces the Saddle Vent

Allegro's MVP is the first manhole system to combine the low profile manhole air vent, a 90 degree 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 which can be dropped down into the manhole with a quick release of the drawstring.  The collapsible duct springs back into shape once a worker is down into the manhole.  The ducting is vinyl and polyester with a PVC coating and is heat resistant up to 180 degrees F.  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.


   QTY SAL9510-50

Manhole Ventilation Passthru, 8"

   QTY SAL9510-60

Manhole Ventilation Passthru, 12"