I've got 4 year old Avent Bottles - Will current Avent teats be compatible?

[Alibobbles]

The bottles from my son are in good condition so I saved them but I dont recognise the teats that are sold now in Mothercare/Boots etc. Will I be able to get teats for my old bottles?

My bottles are about 3.5 years old and I get new teast every so often with no compatibility problems - they look just the same as the old ones, tbh - from Boots/Superdrug