Stadium BM720 Anti Draft Black Hole Vent 9″x 6″ 71.5K

Description

‘The Original Black Hole Ventilator’ BM720 comprising;

• Double rustic red louvred airbrick, cavity liner with cavity drip and anti-draught baffles extension piece and white inner grille. 
• Invertible for high or low fitting. 
• Expands to fit solid or cavity walls 290 mm to 390 mm
• Rated Input – Max 21kW (71,500 Btu/h) 
• Free area cm2: 70cm2 

TO ENSURE THE VENTILATOR PROVIDES THE CORRECT AMOUNT OF AIR WHEN AN APPLIANCE IS OPERATING IT IS IMPORTANT THAT A SPILLAGE TEST IS CARRIED OUT AS REQUIRED BY THE BRITISH STANDARD AND GAS SAFE GOOD PRACTICE.

Additional information

Weight	1.41 kg
Brand
Manufacturer Number
UPCEAN Number
Product Type	Anti Draft Vent, Black Hole Vent