High-output amalgam UV-C for strong, stable disinfection at rated flows 12-month / ~9,000-hour service life — replace annually to maintain dose NSF/ANSI 55 Class A performance when installed in a certified Pro20 system Installs into existing Viqua Pro20 housing; no system modifications required Works best with pre-filtered water (rainwater tanks, bores, springs, surface supplies) Ideal for residential, small commercial, and light industrial sites Replace the lamp every 12 months even if it still glows, reset the controller, and avoid touching the glass during installation.
