Matala Stainless Steel Inline UV Clarifier

Green, cloudy pond water usually means one thing: a free-floating algae bloom is winning the fight against your filtration system. The Matala Stainless Steel Inline UV Clarifier attacks that problem at the source, running pond water past a high-output UV lamp that scrambles algae cells before they can multiply. Pond owners call it the "silver bullet" for green water because results often show up within days, not weeks. Unlike chemical clarifiers or flocculants, it works continuously as long as your pump is running, with nothing to dose and nothing that can throw off your water chemistry.

What a Stainless Steel UV Clarifier Actually Does

Single-celled algae reproduce quickly whenever a pond gets warm sunlight and excess nutrients from fish waste or decaying leaves. A UV clarifier does not remove algae from the water directly. Instead, it exposes each cell to a dose of ultraviolet light strong enough to damage its DNA, so the cell can no longer divide. Once the algae stop reproducing, your existing filter and skimmer catch the dead cells and pull the pond back to clear water. The stainless steel body on this unit reflects a portion of that UV light back through the water column, which is why the polished chamber is rated for roughly 30% more UV exposure than a standard plastic housing.

Key Features and Benefits

This clarifier is built as an inline unit, meaning it plumbs directly into your existing pump line rather than sitting inside the pond. A few details set it apart from cheaper plastic-bodied clarifiers on the market, and most of them come down to the stainless steel housing doing more work than a passive pipe.

Polished Stainless Steel Reactor Chamber

The mirror-finished interior bounces UV light back toward the water instead of absorbing it, boosting the effective kill rate without adding wattage.

High-Output Lamp and Quartz Sleeve

The lamp and quartz sleeve are matched to hold a steady 254nm output, the wavelength most effective against algae and free-floating pathogens, for the working life of the bulb.

Single Big-Bore Body

Because the reactor uses one wide-diameter chamber rather than a narrow pipe, water passes through with almost no added resistance, so your pump does not have to work harder to push water through the unit.

Visual LED Service Indicator

A small LED on the housing tells you when the lamp's output has dropped enough that it is time for a replacement, instead of leaving you guessing between annual changes.

Every unit ships with a 17-foot power cord and inline transformer, and day-to-day upkeep is limited to an annual lamp swap and an occasional check of the quartz sleeve.

Choose the Right Wattage for Your Pond

Matala builds this clarifier in four wattages, and picking the correct size matters more than any other factor in how fast your pond clears. Undersizing the unit for your pond volume is the most common reason a UV clarifier seems not to work.

The 40-watt and 75-watt models each run a single lamp. The 150-watt version pairs two 75-watt lamps, and the 300-watt version runs four. For clarification of green water only, keep flow as close to the maximum GPH rating as your pump allows; slower flow rates favor bacteria control over algae clarification.

Warranty Coverage

The stainless steel housing and transformer are covered by a one-year limited warranty against manufacturing defects. The UV lamp and quartz sleeve are wear items, like a light bulb, and are not covered under warranty since their output naturally declines with use regardless of build quality.

Product Leaflet

Installation Manual