HEPA Terminal Housing (Ceiling Diffuser)
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Ceiling terminal housing for HEPA panel filters, in standard (STC) or low-profile (LTC) top-collar and side-collar versions, with swirl, 4-direction or perforated diffusers and Ø150–250 mm collars.
H-BOX terminal housings hold HEPA panels (305×305 up to 610×610 mm, depths 70–110 mm) in cleanroom ceilings. Variants: STC standard top collar, LTC low top collar (70/78 mm filters), plus side-collar versions; diffuser faces in swirl (DSW), 4-direction (D4D) or perforated (DP).
Key Benefits
- Standard & low-profile heights
- Top or side collar entry
- Swirl / 4-direction / perforated diffusers
- Fits 305–610 mm HEPA panels














