This Skimmer cap was designed for Red Sea Reefer RSK-300 Skimmers. It can be ordered with a 3/8" barb or dual airlines. The dual airlines work well with the silencer that comes on the skimmer. The cap can be ordered to allow room for the sensor found on the DC versions of the skimmer.
These images show the prototype in clear. I don't offer clear PETG because it is hard to get a decent finish. This was an experiment to see if the media color change could be seen through the cap. Some photos show it loaded with carbon.
