Nitrous Outlet Pump Station With Digital Scale. Refill Nitrous Bottles. This kit includes the necessary pump, hoses, hardware, filter, and valve needed to fill nitrous bottles from a mother bottle. Mother bottle not included. Calculate Bottle Capacity. Included with the kit is a digital precision scale with stainless steel weighing surface that is ideal for finding a bottles nitrous capacity. Heavy Duty. This pump is made for heavy use and ideal for speed shops or racers that are refilling a lot of bottles. This is the same pump used in our shop to fill bottles for testing and for use in our shop race car.