Allegro Manhole Ventilation Passthru (MVP) 9510-50
With the Allegro Manhole Entry System you have a system that combines a manhole air vent with a 90 degree elbow into one unit. The ducting is a vinyl and polyester with a PVC coating that is heat resistant up to 180 degrees F. There is a lip that holds the unit into place on the edge of the manhole. It lies against the side of the manhole making entry in and out easy.
This unit is very lightweight because it is made from Linear Low Density Polyethylene. This unit stores in a small carton making it inexpensive to ship adding one more bonus to the reason this unit is a good fit for your team.
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What diameter fan is this unit compatible with?1 answer
This will fit a 8" blower.