Home / Plumbing / Brassware / Air Admittance Valve (Black) Customer matched zone "UK" View basket “Cp Rad Extension Piece 40Mm” has been added to your basket. Sale! Air Admittance Valve (Black)£37.02 Original price was: £37.02.£27.99Current price is: £27.99. This product is available for pickup in Orpington. Air Admittance Valve (Black) quantity Delivery Store Collection SKU: 23271WC01 Category: Brassware Tag: Plastic Fittings Product ID: 6619 Reviews Related products 15Mm Brass Air Vent Adaptor £0.95 Add to basket 1/2″ Bsp Brass Air Vent £1.34 Add to basket Alloy Air Vent Key £0.36 Add to basket 1/2″ Bsp Brass Air Vent Cp £1.54 Add to basket