Ultraviolet clarifiers eliminate green water
This 50 watt UV clarifier can be added to the Savio SkimmerFilters. Each SkimmerFilter can hold one or two sterilizers. Inserts directly into Savio SkimmerFilter, no plumbing required.Savio's UVinex UV system uses a coated ultraviolet lamp to avoid the need for fragile quartz sleeves.
Note: This UV is for the full-size skimmer only.
1 Year Manufacturer's Warranty on Transformer
Actually, there is not a difference in the units themselves, the difference is in the ratings provided for the appropriate pond size and flow rate. By following UV sterilizer ratings the pond should have clear water despite most other conditions and the UV will also be more effective against controlling microscopic pathogens.
A UV clarifier rating typically means that you may not have crystal clear water all the way to the bottom. It also assumes that the pond has good plant coverage (greated than 50%) and adequate biological filtration. When following UV clarifier ratings it is a good idea to oversize the UV to help ensure cleaner water.