6000 series "Economical"centrifugal fans / 6300 Unifoil Square body plug fan.

6300 series "Economical" UNIFOIL centrifugal plug fan.
Available in wheel sizes 12.25" to 49" as standard units,
custom sized units up to 89" dia, can be of steel, stainless
steel and aluminum construction, the plug panel can be up to
6" deep on standard fans and custom built to suit any oven
wall thickness.They can be built to be insertrd into the oven
wall or with a mounting base for installation on floor or
Maximum  temperature for standard fans is 800degF with
material derated for the operating temperature. The fan 
performance range is the same as the 6100 series fan.
They can be supplied with a housed wheel or unhoused 
for plenum installation.