Now back in stock :D (Free order & collect or £4.00 Home delivery) https://www.wilko.com/en-uk/masterplug-outdoor-socket-2-gang-switched-ip66/p/0455032
The only difference between Master Plug & BG is the actual packaging.
I grabbed a few of these recently from Wilko at this price. Didnt post as handnt realised this was a good deal. They are solid sockets. But the clip which holds the cover is clearly a weak point. Its made of plastic and very stiff. In other words its likely to fail if you will open/shut the socket regularly :(
17th (and 18th) edition of the wiring regulation say all houses have to have RCDs on the sockets, 16th edition said for outside sockets. It's been that way for 20+ years (1996 onward and people were fitting them decades before). yes people still have fuses boxes that's why I said you would probably find it's got one... not "your house will definitely have one". Most up to date regs do not say MCB only. They say + RCD. It's really easy for anyone to test anyway, plug device into socket, trip RCD if you have one... if the socket goes out your socket is RCD protected.