VIQUA UV water treatment systems from an authorized dealer — VT and VH residential UV sterilizers, D4 / E4 / F4, the NSF Class A Pro series, H and K commercial units, and genuine VIQUA replacement lamps, sleeves and ballasts. Free shipping, no sales tax outside Minnesota. Which VIQUA series fits your home, and which lamp fits your unit, are below the products.
VIQUA (formerly Sterilight and Trojan UVMax) is the most widely installed residential UV brand in North America, and every system we sell is genuine and warranty-registered. The lineup is organized by flow and by certification level; the table below is the quick way to find your family.
| Series | Flow | Best for | Models |
|---|---|---|---|
| VT / S2Q-PA (point of use) | 1–3.5 GPM | One faucet, RV, cabin, lab sink | VT1 · VT4 · S2Q-PA |
| VH (Home) | 5–18 GPM | Whole-house on most wells; compact, lamp-change indicator | VH150 · VH200 · VH200-F10 · VH410 · VH410M (sensor) · VH410-F20 |
| D4 / E4 / F4 (UVMax) | 12–36 GPM | Larger homes, the classic UVMax platform | D4 · E4 · F4 · UVMax Integrated Home System |
| Pro (NSF/ANSI 55 Class A) | 10–50 GPM | Wells that have failed a test; health-department compliance; LightWise lamp management | Pro 10 · Pro 20 · Pro 30 · Pro 50 |
| VP (Professional) | 24–46 GPM | Light commercial, multi-family | VP600 · VP600M · VP950 · VP950M |
| H / K (Pro commercial) | 45–80 GPM | Commercial and institutional; see commercial UV | H · H+ · K · K+ |
| S-OZ (UV + ozone) | 70–200 mg/hr ozone | Odor and taste oxidation alongside disinfection | S2Q-OZ · S8Q-OZ |
VIQUA lamps are rated for 9,000 hours — change them yearly, and replace the quartz sleeve every two years or when it won't clean up. Use the genuine part number for your system; generic lamps can fit the chamber but deliver a lower dose. We stock Pro 10 lamp + sleeve (602854), Pro 20 lamp + sleeve (602855) and the VIQUA ballast controller kit; for VH, D4/E4/F4, VP, H and K lamps and sleeves, call 800-374-2143 with your model and we'll ship the correct part.
New to UV? Start with our UV water filter guide for sizing and pre-treatment requirements.