Morco FEB24E, FEB24ED, FEB24ED3* Hydraulic Valve Kit MCB2257 Genuine Part - Hanicks Morco Part No. MCB2257 This is a pre-assembled hydraulic valve ready to fit onto the hydraulic assembly to help repair all FEB boilers. In addition there are seals, components and instructions to help replace and repair other hydraulic assembly parts which have either worn or become frost damaged or both. The diaphragm is installed within the assembly. Fits: Morco FEB24E, FEB24ED, FEB24ED3* Models. Genuine Part, Manufacturer: Hanicks