Have you got a stubborn E02 fault that has not been resolved through cleaning, descaling or replacing the impeller?  It is likely that your flow sensor is the root of the problem, over time the paddle, magnet or reed switch can fail.  This complete top assembly is fully tested and includes a new sealing o-ring.
Please be aware that this part is only compatible with Egg shapped AirJet and older style HydroJet pumps.
Tracked Shipping to UK addresses is included in the 'Buy it Now' price, outside of the UK an additional postage charge applies.