Push Fit Air Admittance Valve
Push Fit Air Admittance Valve
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Sometimes known as a 'Dirgo' this is usually used at the terminal of a soil stack
For internal use only, this allows for the ventilation of a pipe run (to relieve negative pressure) without letting odours escape
For internal use only, this allows for the ventilation of a pipe run (to relieve negative pressure) without letting odours escape