Stadium 4-6" Round White Louvre Vent Grille With Flyscreen  £5.21

• To fit 4", 5" and 6" tubes with self locking spring clips and recess for mastic fitting
• For external or internal use
• Use without fly screen for gas appliance ventilation
• Size: 165mm diameter (6-1/2")
• The free area of a wall tube is calculated using the internal diameter giving approximate measurements

Technical Specification:
Dimensions: 165mm Diameter. To fit 100, 125, 150 and 165mm Diameter
Free Area: 115cm² for 125mm
Rated Input: 30 kW max.
Colour/Finish: White