check out new kitchen homebase mag (free in store) page 54, i got the mag 2 weeks ago, hence why i say new one, could be out for 6 months for all i know!! they've three different colours of splashback: Bride (white i think...it has lights in the pic so hard to tell if white / clear, but "bride" suggests the former), vermeer(redy/pink) and ebony (dark bluey black looking colour) doesn't quote prices but seems that 3 sizes are also available in each: 600 x 750, 1000 x 504 or 140 x 1000.
HTH
Sloggi
PS i dont work for the company, i just have a disturbing interest in kitchens!!!