The impeller screw seal is a small rubber element placed between the screw and the impeller of the ESPA Nadorself T pump that prevents pool water from reaching the metal thread.
Without the seal, water would penetrate to the screw and cause corrosive damage to the thread, which would later make it impossible to disassemble or replace the impeller.
The original material, resistant to chlorinated water and temperature fluctuations, ensures the durability of the seal throughout the entire service life of the pump.
The seal is replaced automatically with every replacement of the screw or impeller – the cost of the part is negligible compared with the risk of corrosive damage to the shaft.
