Jebao FA Pond Pump Impeller Replacement Rotor Spare with Spindle and Rubber Bung

Jebao TMP XTP Pond Pump Spares- Stepped Hosetail Washer Impeller 3500 5000 10000. TIP: To check if your impeller is worn, If you hold the magnet in one hand and spin the paddles all the way round with the other this indicates a worn impeller, as the paddles should 'catch' every half turn or so.

eBay