1. Classic 90 HOB Protein Skimmer Classic 90 HOB Protein Skimmer
    $209.99

    Classic 90 HOB Protein Skimmer

    Ideal Hang-On-Back Skimmer Rated for up to 130 Gallons

    Footprint: 7.5" x 7.5" | Body Diameter: 4" | Height: 23.8"
    Powered by: Reef Octopus Aquatrance 1000s Pinwheel Pump

  2. Classic 100 HOB Protein Skimmer Classic 100 HOB Protein Skimmer
    $174.99

    Classic 100 HOB Protein Skimmer

    Hang-On-Back Skimmer rated for up to 105 Gallons

    Footprint: 8" x 3.75" | Height: 17"
    Powered by: Reef Octopus Aquatrance 1000s pinwheel pump

  3. Classic 1000 HOB Protein Skimmer Classic 1000 HOB Protein Skimmer
    $204.99

    Classic 1000 HOB Protein Skimmer

    Hang-On-Back Protein Skimmer Rated for up to 130 Gallons

    Footprint: 8" x 3.5" | Height: 17"
    Powered by: Reef Octopus Aquatrance 1000s Pinwheel Pump

  4. Classic 2000 HOB Protein Skimmer Classic 2000 HOB Protein Skimmer
    $249.99

    Classic 2000 HOB Protein Skimmer

    Hang-On-Back Skimmer Rated for up to 200 Gallons

    Footprint: 10" x 4" | Height: 21"
    Powered by: Reef Octopus Aquatrance 2000s Pinwheel Pump

  5.   Classic 300 HOB Protein Skimmer Classic 300 HOB Protein Skimmer
    $209.99

    Classic 300 HOB Protein Skimmer

    Hang On Back Skimmer Rated for up to 150 Gallons

    Footprint: 11.5″ x 3.25″ | Height: 18″ 
    Powered by Dual Aquatrance 1000s Pinwheel Pumps