
RedSea RSK-300 Recirculation Cap
thingiverse
I just wanted to share with you a model of a RSK-300 Recirculation Cap for CO2 scrubber. The cap has 8 holes on top. You can route two 6mm hoses from the skimmer air inlets via CO2 scrubber into these holes. The rest holes can be used to control how much fresh air will be sucked in. You can simply tape them or screw a 6 mm platic bolt if you want to reduce the amount of fresh air. I added a small cap that also can be used to fill some of the wholes.
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