This is a 24volt pump. It's far from new but it still works. It's rated at 32 litres/minute. It's a 2000 series, code number 23680-2103. It has 1/2 inch BSP female fittings.
Is it worth £25 to anyone?
Send me a PM if you are interested.
Derek.
p.s. There's a small prize for anyone who can figure why it was fitted in my boat which is wired for 12V!