EPP Air Distribution Box | Fresh Air Manifold Plenum Box

EPP Air Distribution Box — Lightweight Fresh Air Manifold Plenum Box

An EPP plenum box moulded from expanded polypropylene. EPP is exceptionally light while still being rigid and impact-resistant, and it also has useful thermal and acoustic properties, so the box contributes to both condensation control and noise reduction without any additional lining. Manifold configurations are available from five to seven ways.

Key Features

• EPP moulded construction — very light, rigid and impact resistant
• Inherent thermal and acoustic performance — reduces condensation risk and noise
• 5 / 6 / 7-way manifolds — the right outlet count for whole-apartment layouts
• Corrosion-free and odourless — no rust, no chemical smell indoors
• Fast installation — light enough to fix single-handed in a ceiling void

Technical Specifications

Typical Applications

• Whole-apartment fresh air distribution from a single MVHR unit
• Concealed ceiling installation where weight matters
• Projects needing built-in condensation and noise control

System Matching

Pairs with HDPE corrugated pipe, pre-insulated radial ducting, straight couplings and ceiling diffusers. For the ABS equivalent see our ABS air distribution box.

FAQ

Q: How is EPP different from ABS for this application?
A: EPP is lighter and brings some thermal and acoustic benefit; ABS is denser and offers a harder, glossier surface.

Q: Which manifold sizes are available?
A: Five, six and seven-way versions are listed in the specification table below.

Q: Can outlet ports be customised?
A: Yes, custom port arrangements can be quoted for project orders.