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.