The Morco part is based around the diverter valve section. The diverter valve is a directional water device that only appears in combi boilers. It allows the hot water to be sent to the central heating system (radiators, etc.) or to the DHW system (taps, etc.).
Fits the main medway super and Super L
Fits the main medway thames
Technical specification
Waist Sizeaa88cf19gvTypeDiaphragmMaterialRubberColourBlackSupplier Part Number7671988Brand NameMyson