12" Diameter Duct to Duct Connector

Constructed of galvanized steel, Allegro Industrie's duct to duct connectors allow safe connections of additional ducting needed for remote locations.  They feature a raised lip to hold ducting in place.  

16" to 12" Flexible Vinyl Adapter Reducer

Allegro's Flexible Vinyl Adapter Reducer 9600-55 lightweight yellow and black soft nylon adapter reducer is rugged enough to stand up to any working condition and is designed for most air handling capabilities. It’s flexible and collapsible...

16" to 8" Flexible Vinyl Adapter Reducer (for Models 9515 and 9517)

Our lightweight yellow and black soft nylon adapter reducer is rugged enough to stand up to any working condition and is designed for most air handling capabilities. It’s flexible and collapsible design allows for easy storage when not in use. The...

8" Manhole Ventilation Passthru (MVP) with 15' Ducting

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 down into the manhole...

12" Manhole Ventilation Passthru (MVP) with 15’ Ducting

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 down into the manhole...

24" Jet Fan (11 3/4" x 32 3/4" diameter)

This heavy duty aluminum fan created by Allegro can be used as a blower or exhaust by simply reverse mounting. Compressed air is pushed through a nozzle at the end of each blade creating the fan to propel at speeds up to 11,000 CFM (20″ model) or...

Extra Large Metal Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...

Large Metal Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...

Medium Metal Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...

Extra Small Metal Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...

Large Plastic Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...

Medium Plastic Venturi Blower

Compressed air or saturated steam is the power source for our Venturi Blower line. Small volumes of high velocity air (from the compressed air source) run through the casting and out the nozzle jets, creating a venturi or pulling action that creates...