Upgrade your standard HydroMAX with this 37 watt UV Retro-Fit Kit. The 37 watt uv sterilizer retro-fit kit will eliminate and offer protection from waterborne Algae and harmful Bacteria and viruses. Great for Koi Ponds and Water Gardens.

The 37 watt UV Retro-Fit Kit includes a 37 watt high-output uv lamp, quartz sleeve, power supply and HydroMAX adaptor parts.

NOTE: All UV Sterilizer gaskets and o-rings must be replaced annually to ensure a watertight seal.