Comet Reduction Gearbox - For P48/AP, P50, APS51, APS61 & APS71 pumpsThis Comet Reduction Gearbox is a high quality, essential component for optimising the performance and longevity of your Comet diaphragm pump. Specifically designed to be compatible with a range of models including the P48 AP, P50, APS51, APS61 & APS71 series, this gearbox is the perfect solution for adapting high speed electric motors to the required operating speed of your pump. By reducing a motor's 2800 RPM output to the pump's ideal operating