4004P Universal Aluminum Spiral Diffuser


spiral diffuser   
Click below to choose a size
Model # Style Neck Connection Overall Size Spiral Pipe Size
4004PAL10X03 Spiral Double Deflection w/scoop 10x3 13x4.25 6-24"
4004PAL10X04 Spiral Double Deflection w/scoop 10x4 13x5.25 8-24"
4004PAL10X06 Spiral Double Deflection w/scoop 10x6 13x7.25 12-24"
4004PAL12X03 Spiral Double Deflection w/scoop 12x3 15x4.25 6-24"
4004PAL12X04 Spiral Double Deflection w/scoop 12x4 15x5.25 8-24"
4004PAL12X06 Spiral Double Deflection w/scoop 12x6 15x7.25 12-24"
4004PAL12X08 Spiral Double Deflection w/scoop 12x8 15x9.25 14-36"
4004PAL14X03 Spiral Double Deflection w/scoop 14x3 17x4.25 6-24"
4004PAL14X04 Spiral Double Deflection w/scoop 14x4 17x5.25 8-24"
4004PAL14X06 Spiral Double Deflection w/scoop 14x6 17x7.25 12-24"
4004PAL14X08 Spiral Double Deflection w/scoop 14x8 17x9.25 14-36"
4004PAL16X03 Spiral Double Deflection w/scoop 16x3 19x4.25 6-24"
4004PAL16X04 Spiral Double Deflection w/scoop 16x4 19x5.25 8-24"
4004PAL16X06 Spiral Double Deflection w/scoop 16x6 19x7.25 12-24"
4004PAL16X08 Spiral Double Deflection w/scoop 16x8 19x9.25 14-36"
4004PAL18X03 Spiral Double Deflection w/scoop 18x3 21x4.25 6-24"
4004PAL18X04 Spiral Double Deflection w/scoop 18x4 21x5.25 8-24"
4004PAL18X06 Spiral Double Deflection w/scoop 18x6 21x7.25 12-24"
4004PAL18X08 Spiral Double Deflection w/scoop 18x8 21x9.25 14-36"
4004PAL20X03 Spiral Double Deflection w/scoop 20x3 23x4.25 6-24"
4004PAL20X04 Spiral Double Deflection w/scoop 20x4 23x5.25 8-24"
4004PAL20X06 Spiral Double Deflection w/scoop 20x6 23x7.25 12-24"
4004PAL20X08 Spiral Double Deflection w/scoop 20x8 23x9.25 14-36"
4004PAL24X03 Spiral Double Deflection w/scoop 24x3 27x4.25 6-24"
4004PAL24X04 Spiral Double Deflection w/scoop 24x4 27x5.25 8-24"
4004PAL24X06 Spiral Double Deflection w/scoop 24x6 27x7.25 12-24"
4004PAL24X08 Spiral Double Deflection w/scoop 24x8 27x9.25 14-36"


Spiral Diffuser Specifications and Features:


  • Aluminum construction
  • Exposed spiral duct application
  • Vertical front blades, horizontal back blades
  • Each size works on a range of duct diameters
  • Integral gasket seals spiral diffuser tightly to duct
  • Includes built-in scoop extractor
  • Scoop allows for accurate balancing and air control
  • Mill Finish
  • Many sizes available upon request


Spiral Diffuser Spec Sheet

4004P Performance Data