Plumbing Supplies
FloPlast Air Admittance Valve External - 110mm Black
Air admittance valves are an ingeniously designed fitting that avoids the need for a soil vent pipe to terminate externally and within the strict traditional guidelines that govern position. Traditionally, open vent pipes needed to be installed at...
https://www.bizrate.co.uk/plumbingsupplies/floplast-air-admittance-valve-external-oid29220987369.html
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