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Frequently asked questions

Match the model code (L8, L12, L22, L41, L57, etc.) printed on your UV chamber to the equivalent RQ- sleeve — each is sized to a specific Atlas/Luminor lamp length.

Replace or clean it whenever you change the lamp, and sooner if you see scaling, discolouration or cracking, since a scaled sleeve blocks UV output even with a fresh lamp.

Atlas replacement sleeves come complete with the O-ring needed to reseal the chamber.

Yes, light scale can usually be cleaned off with a mild descaler, but a cracked or heavily etched sleeve should be replaced rather than cleaned.

Yes — the sleeve is the pressure boundary between the water and the lamp's electrical compartment, so a cracked sleeve should be replaced promptly rather than run on.