Rectangular perpendicular plenum box for wall grilles, 204 x 60 mm to 200 x 100 mm (L x H)
Rectangular plenum box made of KTL coated steel; thanks to this KTL coating, the plenum box is resistant to the corrosive elements of the cement screed (compression strength 80 kg/cm²)
The KTL coating is also dust and moisture repellent, which makes it very appropriate for ventilation applications