The Simon Vent-A-Matic DGSPBS is a continuous thru-air vent with a stormguard for weather protecti...The Simon Vent-A-Matic DGSPBS is a continuous thru-air vent with a stormguard for weather protection. Also known as a 'gas vent'. It meets all modern gas regulations and is designed for use where continuous ventilation is mandatory.For use with double glazed units Aperture (hole in glass) 159mmAll Vent-A-Matic models are designed for simple two part fitting into the glass aperture. For additional security and weather tightness, a little silicone glazing sealant can be applied to the external retaining ring.Vent-A-Matic ventilators can be cleaned with normal window cleaning materials.
The Simon Vent-A-Matic DGSPBS is a continuous thru-air vent with a stormguard for weather protection. Also known as a 'gas vent'. It meets all modern gas regulations and is designed for use where continuous ventilation is mandatory.For use with double glazed units Aperture (hole in glass) 159mmAll Vent-A-Matic models are designed for simple two part fitting into the glass aperture. For additional security and weather tightness, a little silicone glazing sealant can be applied to the external retaining ring.Vent-A-Matic ventilators can be cleaned with normal window cleaning materials.