Bought new Rads/TRV's and stop locks from Screwfix. As they were ordered off their EU website I (wrongly) assumed they would be compatible with French 14mm pipework .. NOPE .. 15mm fittings. I've hunted high and low here for a reducer or adapter but no success. I know they are out there as I've seen TRV and adapter kits sold together .. for a price!! Would I be able to use a 14mm olive and nut onto the body of the TRV/Stop lock, or am I just asking for leaks? Any other suggestions appreciated. Ta.