Wilwoods Compact Series Master Cylinder with Electric Fluid Level Cap is designed for applications where you have space limitations and will illuminate a light when Fluid Level is Low . With an overall length of 3.37″ and 1/8-27 NPT outlet port, the Compact is 2.2″ shorter than the Standard while retaining a full stroke. Reservoir is intended to fit directly on Master Cylinder, let us know if you require Remote Reservior or require Electric Fluid Level Cap on a differnt size Master.