One of the best, if not the best budget pressure washer going. This includes the patio cleaner, which normally retails for around £20.
It has a metal pump, unlike the Karcher K2 which has notorious cracking problems (Been there myself). People have confirmed the metal pump in the product comments.
It's only been cheaper once before by £5, but it often sells for quite a bit more: http://uk.camelcamelcamel.com/Nilfisk-Compact-Pressure-Washer-Cleaner/product/B00AZKE2HCYou must select Amazon from the "Other sellers" on the right.
Edit - It is now 1-3 weeks delivery, but this is just the normal Amazon message when they're waiting on stock.