Stadium Anti-Draught Black Hole Ventilator BM720
- Invertible for high/low fitting
- Expends to fit solid or cavity walls (290-390mm)
- Rated input: Max 21kW (71,500 Btu/h)
- Free area: 70cm2
Stadium's Anti-Draught Black Hole Ventilator BM720 is the original black hole ventilator from Stadium and comprises of a double rustic red louvred airbrick, cavity liner with cavity drip and anti-draught baffles extension piece and white inner grille. This is a high quality product that is easy to install and available for next day delivery.