Rocket Car / Sustainer Nozzle from
AntiGravity Research Corporation
Precision-cut reduction nozzle with lathe centering and trimmed inner seal for excellent water rocket performance. This nozzle works with the upper stage of
the 2-stage rockets, and with the Rocket Car.  Useful for making water rockets, pop bottle rockets, water bottle rockets, pop bottle water rockets,
water pump rockets, soda bottle rockets and bicycle pump rockets.

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