
Swirl Square Plenum Box (PSB)
Swirl Square Plenum Box (PSB)
Galvanised sheet steel plenum box for square swirl diffusers. 0.7mm thick with central fixing bar; available side- or top-entry, lined or unlined.
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Products
Top and side entry plenums for flexible duct connections to diffusers and grilles.

Swirl Square Plenum Box (PSB)
Galvanised sheet steel plenum box for square swirl diffusers. 0.7mm thick with central fixing bar; available side- or top-entry, lined or unlined.
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Swirl Circular Plenum Box (ODS)
Galvanised sheet steel circular plenum box for ODS swirl diffusers. 0.7mm thick with central fixing bar and fixing lugs; side or top entry, lined or unlined.
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Swirl Circular Plenum Box (RSW)
Galvanised sheet steel circular plenum box for RSW radial swirl diffusers. 0.7mm thick with central fixing bar; side or top entry, lined or unlined.
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Metal Side Entry Plenum Box
Galvanised sheet steel side-entry plenum box for square grilles and diffusers. 0.7mm thick with optional 6mm insulated lining. Manufactured to order across a wide range of sizes.
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Metal Top Entry Plenum Box
Galvanised sheet steel top-entry plenum box for square grilles and diffusers. 0.7mm thick with optional 6mm insulated lining.
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ACP2 Plenum (Evaporative)
Vacuum-formed 4-sided plenum for evaporative AC. Lightweight, textured finish, suitable for wet areas. Adjustable galvanised louvres; 9,000–18,000 m³/h.
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ACP3 Plenum (Evaporative)
Vacuum-formed 8-sided plenum for evaporative AC. Lightweight, textured finish, suitable for wet areas. Adjustable galvanised louvres; 9,000–18,000 m³/h.
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UK-stocked. Trade pricing available. Fast delivery nationwide.
