This is a complete nitrous oxide refill station.

THIS KIT COMES WITH THE: NITROUS PUMP, BRAIDED HOSES, FITTINGS, SHUT OFF VALVES, NITROUS FILTER W/FITTINGS, BOTTLE NUTS FOR BOTH BOTTLES, NIPPLES AND COMPLETE INSTRUCTIONS. 

The kit does not include bottles. We do not sell the large mother bottles. Those are rented to you by a local gas supplier.