Red Sea RSK 300 Reefer Internal Protein Skimmer


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Red Sea RSK 300 Reefer Protein Skimmer – Efficient – Quiet – Ergonomic

Red Sea RSK 300 Reefer Skimmers are powered by Sicce`s PSK Skimmer Pumps, a pump well known among hobbyists around the world for their efficient output.

The silent operation of the Reef Skimmers are attributed to the large air intake silencer, and the vibration dampening feet and connections.

The diffusion chamber of the Reefer Skimmers disperses microbubbles produced by the PSK skimmer pump evenly through the conical ergonomic body, while maintaining air and water flow.


  • FoamView window for foam regulation
  • Neck cleaner integration
  • Drain port connection with 3 foot draining hose
  • Graduated collection cup to monitor skimmate production
  • Highly effective air silencer
  • High volume reaction chamber
  • Sicce PSK Skimmer pump
  • Two positioning options for the skimmer pump
  • Precise gate valve for skimming control
  • Vibration reducing footing

RSK Ratings





SPS Tanks:80 Gallons / 300 Liters160 Gallons / 600 Liters240 Gallons / 900 Liters
Mixed Reef Tanks:160 Gallons / 600 Liters320 Gallons / 1200 Liters500 Gallons / 1800 Liters
Fish Only Tanks:240 Gallons / 900 Liters500 Gallons / 1800 Liters740 Gallons / 2700 Liters


Sicce Pump Model:PSK-600PSK-1000PSK-1200
Air Flow (GPH/LPH):130 / 500195 / 750235 / 900
Water Flow (GPH/LPH):265 / 1000400 / 1500530 / 2000
Dimensions:9.1L x 8.3″W x 21″H10.2″L x 9.4″W x 22″H11.4″L x 10.6″W x 23″H
Recommended Water Depth:6-8″ / 16-20cm7-8″ / 18-20cm8-9″ / 20-24cm


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