Fluval UVC In-Line Water Clarifier Up To 100 Gallons A203 Aquarium New Open Box

What it is

An in-line UV clarifier you connect to your aquarium filter tubing. It uses ultraviolet light to kill:

• free-floating algae (green water)
• bacteria
• some parasites (limited)

Designed for tanks up to 100 gallons.

✅ Pros (why people buy it)

✔ Clears green water fast

• Usually noticeable improvement in 24–72 hours
• Great for algae blooms that make water look like pea soup

✔ Inline = clean setup

• No bulky device inside your tank
• Hides in your filtration line

✔ Improves water clarity overall

• Water looks “polished” and crystal clear

✔ Low maintenance

• Just replace UV bulb periodically (6–12 months typical)

Brand: Fluval

Tank Capacity: 100 gal.

Water Type: All Water Types

Model: A203

MPN: A203

Filter Location: External

Country of Origin: China