Comet Reduction Gearbox - For P48/AP, P50, APS41, APS51, APS61, APS71 pumpsThis Comet Reduction Gearbox is a high quality, professional grade component designed to ensure optimal performance and longevity for your Comet diaphragm pump. It is specifically engineered to be a perfect match for a Honda GX240 270 engine, providing a secure and reliable connection to your pump. With a 1: 6. 44 ratio, it efficiently adapts the engine's 3600 RPM output to the lower operating speed required by your pump, significantly reducing wear