• 'Black Hole' cavity liner and extension piece.
• Brown external cowl white internal grille.
• Fixed anti-draught baffles
• Tube length from 228mm to 585mm with extension tube supplied.
Technical Data
Core Drill 'Black Hole®' Ventilator
• Rated Input - Max 13kW (44,000 Btu/h)
Free area cm²: 30cm²