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Got a Lifegard Aquatics ProMax 40 or QL-40W UV sterilizer?

This is the exact replacement bulb you need.

It's brand new, fresh stock, and works for both freshwater and saltwater setups—basically any water type you're running.

The model number is R175231DP, and it's also UPC 788379308353.
Just pop it in and you're back to keeping your tank crystal clear.

No weird packaging surprises—it's either in retail packaging or maybe just a simple box if that's how it came from the manufacturer.

Either way, it's unused and undamaged.

Great for aquarium hobbyists who want to keep their water clean and their fish happy.

5 out of 5