Reef Octopus CLASSIC 150-INT 6” Protein Skimmer


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A member of the Reef Octopus Classic Series, this popular in-sump skimmer will provide great filtration for marine aquariums up to 210 gallons.

As with every Reef Octopus protein skimmer, the Classic 150INT is constructed of high-quality cast acrylic and features an easy to adjust gate valve, a quick release neck for easy cup removal, cup drain, bubble diffuser, o-ring sealed union pump mount, air shredding Aquatrance 2000s pinwheel pump and air silencer.

Filtration Handling

  • 210 Gallon – Light Filtration Demand
  • 150 Gallon – Medium Filtration Demand
  • 110 Gallon – Heavy Filtration Demand


  • Enhanced Performance Venturi Air Injection System
  • Reef Octopus Aquatrance 2000s Skimmer Pump
  • Refined Hybrid (half cone) Skimmer Body
  • Easy to Remove/Quick Release Collection Cup with Drain
  • Precision Water Level Control Output Valve
  • Air Intake Silencer
  • Solid Acrylic Construction
  • Quiet and Energy Efficient Operation

Technical Specs

  • Body Size: 6″
  • Footprint: 12.4″ x 8.7″
  • Neck Size: 3″
  • Total Height: 22″
  • Output Size: 40mm – Comes with Metric to British Adapter to 1.25” PVC
  • Output Height: 5.6″
  • Note: Recommended Sump Water Depth: 6″-8″

Pump Information

  • Aquatrance 2000 Pinwheel Pump
  • Wattage: 18w
  • Air Draw: 720 lph / 25.2 SCFH*
  • Water Draw: 198 GPH*
  • *Air and water results will vary depending on aquarium setup


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