Galvanised Metal Plenum Boxes

Available in 3 sizes:
Square Galvanised Metal Plenum box for ducting termination to house exterior. Suitable for external louvre grill connections.
​200 x 200 - Spigot size 150mm.
250 x 250 - Spigot size 200mm
​300 x 300 - Spigot size 250mm.