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Marco Dry Rock Boulders (40lb / 18kg box) offer a natural and highly porous rock option
enhancing water circulation throughout the tank
Ideal for use behind a UV clarifier and in a fluidized bed reactor with a flow rate of 100-200L/h
• Low voltage
fish-only tanks
D-D Replacement 39/80W UV Quartz Sleeve – UV Sterilizer Sleeve Light Marco Dry Rock Boulders (40lbThe D D Replacement 39 80W UV Quartz Sleeve is a crucial replacement part designed to maintain the performance of your UV sterilizer. This precision made quartz sleeve safely houses the UV lamp while allowing maximum UV light transmission for effective water sterilisation. Over time, quartz sleeves can become damaged or coated with deposits, reducing UV efficiency. Replacing the sleeve helps restore proper UV output, supporting clearer water and a
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