Locking Nut for Body Plug of Blue Lagoon UV Lamp (EF990009)

The locking nut for the body plug of the Blue Lagoon UV lamp, catalogue number EB290010, is an original spare part designed for tightening and securing the EF990009 plug in the UV sterilizer body. A correctly tightened nut ensures a hermetic closure of the service opening and prevents water leakage.

The nut is made of chemically resistant material compatible with pool water, chlorine and other products used in water treatment. The precise thread profiles guarantee reliable tightening without the risk of cross-threading or cracking the plastic.

Replacing the nut is part of the standard service procedure for the Blue Lagoon UV lamp and ensures that the system will be fully sealed after the repair. We recommend ordering it together with the EF990009 plug for complete servicing of the service opening.