Collection: CO2 Scrubbers

Why indoor air matters

A skimmer pulls a large volume of room air through the water every day. In a closed house, and particularly through winter, that air can hold considerably more carbon dioxide than the air outside, and CO2 entering the water pushes pH down. A scrubber is one way of addressing that at the source by treating the air before it reaches the skimmer; running the intake line outdoors is the other common approach.

What is listed here

• Scrubber housings in small, medium and large.
• CO2 absorbent media in 1 kg packs for refilling a housing.

Running one

The housing sits inline between the air intake and the skimmer's air line, and the media inside is a consumable that is replaced as it is used up. How long a charge lasts depends on the volume of air being moved and how much CO2 the room air holds, so a scrubber is usually paired with a pH monitor or controller to judge when a refill is due. Housing size follows the skimmer: a larger skimmer moves more air and works through media sooner.