Multi Spigot Plastic Grille Box 400 x 400 – 200/250/300 Spigots

£16.99 (ex VAT)
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400 × 400 Multi-Spigot Plastic Grille Box – 200mm / 250mm / 300mm Duct Connections

Designed for higher-volume ventilation systems, this 400x400 multi-spigot plastic plenum box provides a versatile and hygienic solution, allowing connection to 200mm, 250mm or 300mm ducting from one compact unit.

Manufactured from durable, non-corrosive polymer, the box is easy to clean and helps reduce duct-borne bacteria—making it suitable for commercial and residential HVAC installations alike.

With a slim 100mm box height and lightweight construction, it installs quickly into ceiling voids or tight spaces.


✅ Key Features & Benefits

  • Multi-spigot connections for 200mm, 250mm & 300mm ducting

  • Large 400 × 400mm face size

  • Slim 100mm box height

  • Hygienic, easy-clean polymer construction

  • Non-corrosive and moisture-resistant

  • Lightweight for quick installation

  • Suitable for supply or extract air systems


📐 Technical Specifications

  • Face Size: 400 × 400mm

  • Spigot Sizes: 200mm / 250mm / 300mm

  • Box Height: 100mm

  • Material: Non-corrosive polymer

  • Application: Supply & Extract Ventilation

  • Installation: Ceiling or wall voids