Aqua Ultraviolet Classic 8 Watt UV Sterilizer, White, 2" Ultraviolet Water Sterlizers 4' head: ~5

4' head: ~5

If you purchase a 4000 Gallon Ultraviolet Pond Filter

This model offers a step up in capacity from the 4500SEQ21

A high-performance

Aqua Ultraviolet Classic 8 Watt UV Sterilizer, White, 2" Ultraviolet Water Sterlizers 4' head: ~5AquaUltraviolet Classic 8 Watt UV Sterilizer 2 Crystal clear water starts here. The AquaUltraviolet Classic 8 Watt UV Sterilizer is the perfect entry level unit for smaller ponds, water gardens, and aquariums up to approximately 200 gallons (with proper flow and turnover). Using proven UV technology, this compact yet powerful sterilizer destroys free floating single cell algae, bacteria, viruses, and protozoa that cause green water and disease all