Description
The Aqua Ultraviolet Viper 400 W Plastic is the entry-level Viper — built for high-end residential koi ponds in the 5,000–12,000 gallon range and for small commercial aquaculture systems. Offers the same Viper chamber design as the 800 W and 1200 W models in a more accessible package.
Key Features
- 400 W UV sterilization sized for 5,000–12,000 gallon ponds
- Available port sizes: 2", 3", 4", 6" Slip Union
- 110 V or 220 V variants
- Plastic chassis — value pricing for sheltered installations
- Made in the USA — Aqua Ultraviolet has manufactured UV sterilizers in Temecula, California since 1992
- Backed by Aqua Ultraviolet's full manufacturer warranty
Specifications
| Series | Viper |
|---|---|
| Wattage | 400 W |
| Body Material | High-impact plastic |
| Port Sizes | 2" / 3" / 4" / 6" Slip Union |
| Voltage Options | 110 V / 220 V |
| Pond Capacity Range (sterilization-grade) | Approx. 5,000–12,000 gallons |
| Country of Origin | USA |
Flow Rate (GPH) by Wattage
| Wattage | Max GPH (Clarification, ~30,000 µW/cm²) — green-water control | Min GPH (Sterilization, ~90,000 µW/cm²) — parasite + bacteria kill |
|---|---|---|
| 400 W | 17,500 GPH | 5,833 GPH |
Sizing rule: divide your filtered circulation rate (GPH) by the column you need. Pick a unit whose Max GPH ≥ your circulation rate to achieve clarification dose; pick a unit whose Min GPH ≥ your circulation rate to achieve full sterilization dose at that flow.
Frequently Asked Questions
Viper 400 W vs Classic 240 W — which is right?
The Classic 240 W is a 6-lamp ganged Classic chassis at lower upfront cost. The Viper 400 W uses a single high-output lamp in a more compact body — fewer parts, fewer points of failure, and easier service. Pick Viper if you want a 'single-unit' look.
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