Lifegard Aquatics

40 Watt Pro-MAX High Output UV Sterilizer

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LifeGard Pro-MAX 40-watt High Output UV Sterilizer

  • For freshwater or saltwater aquariums up to 250 gallons
  • Effective against bacteria and water-borne algae blooms
  • Unique design, allowing for multiple plumbing configurations
  • Available in 25w, 40w, 55w, 90w, and 120w sizes


The Lifegard Aquatics Pro-Max 40-watt UV sterilizer features a unique patent-pending flow-through design with less restrictive angled inlet and outlet ports, allowing for better flow. The outlets can be positioned in several different directions to fit your available space and plumbing setup without any additional plumbing -- something unique to the LifeGard UV sterilizers vs other brands. This 40-watt Pro-MAX model is ideal for aquariums up to 250 gallons.


Why Use a UV Sterilizer?

A UV sterilizer is a valuable tool for an aquarium, using ultraviolet light to effectively combat harmful pathogens like bacteria, viruses, and parasites. This not only diminishes diseases but also tackles the issue of free-floating algae or bacteria that cause green and cloudy water. Their efficiency can potentially mean a reduced dependency on medications, especially beneficial when introducing new inhabitants to the tank. Importantly, this method is chemical-free and doesn't alter the aquarium's water chemistry.



UV sterilizers require annual servicing. The UV bulb should be changed every 12 months, even if the light is still on as UV output is reduced beyond effectiveness over time. In addition, the o-rings and gasket should be inspected. Silicone lubricant can be used to protect the gaskets. If you notice any gasket has cracks or is dry, promptly change it to avoid damage. The protective sleeve on the inside of the UV should also be replaced annually to make sure the UV does not damage the actual housing.



Dimensions - 37.3" L x 4.51" W x 9" H

Input/Output Size - 3" Slip Connections

Power Consumption - 40 Watts

Max Operating Pressure - 30 PSI

Max Flow Rate - 2500 GPH

Max Flow Rate for Algae & Bacteria - 1200 GPH

Lamp Life (Hours) - 9000 (approx. 1 year)


What's in the Box?

UV Sterilizer Housing

High Output UV Bulb

Internal Protective Sleeve

UL Listed Ballast

More Information
UPC 788379318208
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Product Questions

What is the minimum flowrate for the 40W?
Question by: Brian St Peter on Aug 3, 2023, 9:35 PM
Hey there,
Thank you for reaching out to us. That would be about 150 GPH.

Please let me know if you need anything further and take care!
Answer by: Matt Lucero (BRS Staff) on Aug 4, 2023, 9:32 AM