Worcester 87186449940 Manifold CH Return Bypass Open — genuine replacement component for Worcester Bosch heating systems. This manifold assembly manages central heating return flow and bypass operation, ensuring proper water circulation and system protection during low-demand periods.
Compatible with select Worcester Bosch boiler models. Designed to maintain optimal heating performance and prevent system overpressure. Direct replacement for original part number 87186449940.
Verify compatibility with your specific boiler model before ordering. Stock subject to availability.
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