The Worcester 87107253280 Siphon is a genuine replacement condensate drainage component designed to safely collect and discharge acidic condensate produced during normal operation of condensing boilers. As combustion gases cool in the heat exchanger and flue, water vapour condenses and forms a liquid that must be routed out of the boiler. The siphon creates a water seal that prevents flue gases or odours from entering the boiler room while allowing this condensate to flow into the drain.

This siphon is compatible with Worcester and Worcester Bosch boilers that reference part number 87107253280 in their technical documentation. To ensure correct fitment and dependable operation, always verify that the part number matches your existing siphon or consult your boiler’s service information before installation, as condensate system designs and connection sizes vary between models.

Supplied ready for direct replacement, the 87107253280 Siphon connects to the boiler’s condensate outlet and drain pipework when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore proper condensate management, supports safe combustion performance and contributes to dependable, trouble-free heating system operation.