40mm Air Admittance Valve

Manufactured by Brett Martin to BS EN 1566, the Air Admittance Valve is suitable for use on 32mm, 40mm or 50mm waste systems through the multifit outlet designed as part of the valve. Air admittance is required to ensure that excess air does not build up and pressurise inside the system, caused by appliance activation.

For more information on specifications and installation, get in touch on 0330 123 1884 or download the Brett Martin Waste Datasheet below.

Price Options

Code Description Brand Price Qty  
Grey AF32W (AF32W) Grey £36.62 inc VAT
£30.52 ex VAT

Technical Information

Manufacturer: Brett Martin
Accreditation: BS EN 1566
Material: uPVC
Diameter: 40mm
Colour: Grey

Brett Martin Waste Datasheet

Delivery Information

Our delivery charge is £20 (inc VAT)

Some products have extended delivery times. These are highlighted in the individual product sections.

Give us a ring on 0330 123 1884 if you have any specific delivery issues.