OK Here we go, It's a Shurflo marine automatic demand pump part no 2095 423 343, 2.8 gal per min/10.6 litres per min pressure setting 30psi( think you can adjust that but it will work fine at that) The marine bit just means some of the components are upgraded to cope with a marine environment. I used it whilst my new machine was in a temporary van but when the new van arrived Hydramaster fitted unit,tank and pump. works perfectly you can have it for £30 plus p+p which I would think would be about £10 so £40 all in My Phone no is 07798 810262 if it helps