Stadium Black Hole Ventilation Set Core Drill BM725

The Stadium Core Drill ‘Black Hole’ Ventilator provides the answer to the dangerous practice of ventilators being blocked off by occupiers who are being annoyed by draughts. It has a brown outer cowl and white inner grille. Fitted with a fixed anti-draught grille.

Includes cavity liner and extension piece.

Specification:

Tube Length: 228-585mm with extension tube supplied
Rated Input: 13kW
Effective Free Area: 30cm²