18x3 4004PAL Spiral Diffuser

18x3 4004PAL Spiral Diffuser
Opening Size 18x3
Overall Size 21x4.25
Item: 4004PAL18X03
List Price $ 42.20 EA
Your Cost $ 38.63 EA

Spiral pipe diffuser for exposed spiral duct applications. Double deflection with individually adjustable vertical blades in front, horizontal blades in back. Integral gasket seals the grille tightly to the duct. Includes built-in air scoop extractor that allows for accurate balancing and air control. Aluminum construction, mill aluminum finish. Universal style allows this size to work on pipe from 6" to 24" in diameter.

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

4004P Spec Sheet

4004P Performance Data