gas vent

To cover openings up to 225 x 75mm.Good free air flow up to 6,700mm2.Suitable for appliance ratings 7-20kW (net).For use in rooms where there is a gas fire, boiler etc......

To cover openings up to 225 x 150mm.Good free air flow up to 13,700mm2.Suitable for appliance ratings 7-34kW (net).For use in rooms where there is a gas fire, boiler etc......