The Worcester Bosch 87229333300 Flue Pipe Seal is a genuine replacement sealing component designed to create an airtight, gas-tight connection between flue pipe sections on compatible boilers. Placed at the joint where flue pipes meet, this seal helps prevent combustion gases or moisture from escaping into the boiler room, preserves correct draft conditions and supports safe, efficient evacuation of flue products to the outside. A compromised flue seal can lead to flue gas leakage, reduced combustion performance, fault codes or safety lockouts, so fitting the correct OEM seal is essential for reliable and safe operation.

This flue pipe seal is compatible with Worcester Bosch CDi, Greenstar and Highflow boilers that reference part number 87229333300 in their technical documentation. To ensure correct fitment and dependable sealing performance, always confirm that the part number matches your existing seal or consult your boiler’s service information before installation, as flue sealing components vary in diameter and profile between models and system configurations.

Supplied ready for direct replacement, the 87229333300 Flue Pipe Seal installs at the flue joint when fitted by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore proper flue sealing, supports safe combustion gas evacuation and contributes to dependable heating system performance in compatible boilers.