For sealing off the motor-compartment on top of the external filter. This rubber O-Ring seals off the the opening of the filter so no water can leak out of it. O-rings will dry out and become brittle after a while. It's advisable to replace them once in a

This Impelloris produced of hiqh quality materials. Pick the appropriate pump in the option menu below.

Eheim Wide Jet Return Spout. A 'Wide' used alternative to the Eheim Spray Bar assembly. Creates a pressurized nozzle for return water, taking up less space than a spray bar with the same effect.