Locking Nut for Mr.Pump ECO Pre-filter Lid

The pre-filter lid locking nut is a plastic closing element that firmly fixes the lid of the pre-filter chamber of the Mr.Pump ECO pump. It prevents the lid from loosening on its own due to pump vibrations and maintains the correct contact pressure on the seal for a watertight closure.

The nut is made of chemically resistant plastic that withstands pool chemicals and temperature fluctuations. Grooves or ribbing around the circumference allow hand-tightening without the need for a wrench, and the nut cannot be over-tightened with increased force thanks to limited thread stops.

Replacing the locking nut is a quick service task in case of cracking or thread damage. The use of an original part guarantees the exact thread and correct tightening characteristics for a secure closure of the pre-filter.