I was just about to order a chrome towel radiator and straight vavles....but....when we.ve checked our bathroom we have microbore coming out of floor which i dont think they will fit the modern valves....or will they? nothings staight forward in my 100yr old house arrrhhhh!
Many radiator valves come with a 15mm-to-10mm reducer/adaptor included in the kit. Or you can get reducer compression couplings, 15-10, and 15-8 in any DIY store.