Allegro Manhole Ventilation Passthru

Allegro Manhole Ventilation Passthru

The Allegro Manhole Ventilation Passthru (MVP) is designed to maintain and re-direct air flow with minimal restriction into manholes, sewers and tanks. The MVP combines a low profile vent, 90° elbow and built-in mounting all into one easy assembly. The MVP is constructed of bright yellow, recyclable linear low density polyethylene. The duct portion is constructed of vinyl and polyester with a PVC coating as well as compressible inner support coils which allow you to extend the ducting as needed from the small storage bag using the quick-release drawstring. The ducting is heat resistant up to 180°F. The low profile elbow of the MVP fits underneath the lower cross-bar of a guardrail and the manhole cover itself can be used to stabilize the MVP using the flat channeled corner. Available with 8" or 12" openings, with or without 15' ducting.


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