What type of vent for outside pipes

[V_Bar_Lor]

Hi, I have 4 pipes sticking out of my house with no covers on them after a new extension. these are grey pipes and 2 comes from extractor fan and 2 come from the toilets so im assuming these are 'stink' vents. What type of vents do i need to put on these? I think the pipes are standard 110mm soil pipes. Thank you.

 

[75pete]

Have a look at Screwfix..Air vents and for the soil pipes, look at theses part numbers;33239 or 11280, also Screwfix

 

[V_Bar_Lor]

ok perfect, thank you