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Auto Air Vents

Remove trapped air from compatible plumbing and heating systems with our range of automatic air vents. Designed to release accumulated air without requiring repeated manual bleeding, automatic air vents can help maintain the proper operation of suitable heating and water systems.

Available in different designs and specifications, the right automatic air vent will depend on its installation location, connection size, operating pressure and system requirements. Always check product compatibility and the manufacturer's installation guidance before fitting.

Browse our range of automatic air vents for central heating installations, system maintenance and replacement projects from Thompson and Leigh.

  • Radiator Air Vent 1/4"
    SKU: 03710150
    Radiator Air Vent 1/4"
    £0.92 £0.77
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  • Radiator Air Vent Brass 1/2"
    SKU: 03710151
    Radiator Air Vent Brass 1/2"
    £1.09 £0.91
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  • Directional Air Vent Chrome 1/2"
    SKU: 03410206
    Directional Air Vent Chrome 1/2"
    £1.26 £1.05
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  • Automatic Air Vent With Check Valve 1/2“
    SKU: 03360161
    Automatic Air Vent With Check Valve 1/2“
    £3.59 £2.99
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  • Automatic Air Vent 15mm
    SKU: 03360160
    Automatic Air Vent 15mm
    £3.59 £2.99
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  • Altecnic Robocal 15mm Automatic Air Vent
    SKU: 02320001
    Altecnic Robocal 15mm Automatic Air Vent
    £9.17 £7.64
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  • Inta 15mm Auto Air Vent
    SKU: 02320015
    Inta 15mm Auto Air Vent
    £9.19 £7.66
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