Reef Octopus CLASSIC 110-INT 4” Protein Skimmer


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A member of the Reef Octopus Classic Series, this popular in-sump skimmer will provide great filtration for aquariums up to 130 gallons.

As with every Reef Octopus protein skimmer, the Classic 110INT is made of high-quality cast acrylic and features a simple to regulate gate valve, a fast release neck for straightforward cup removal, cup drain, bubble diffuser, o-ring sealed union pump mount, air shredding Aquatrance 1000s pinwheel pump and air silencer.

Filtration Handling

130 Gallon – Light Filtration Demand
90 Gallon – Medium Filtration Demand
60 Gallon – Heavy Filtration Demand


Enhanced Performance Venturi Air Injection System
Reef Octopus Aquatrance 1000s 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: 5″
Footprint: 10.4″ x 7″
Neck Size: 2.5″
Total Height: 19.75″
Output Size: 40mm – Comes with Metric to British Adapter to 1.25” pvc
Output Height: 6.5″
Note: Recommended Sump Water Depth: 7″-8″

Pump Information

Aquatrance 1000s Pinwheel Pump
Wattage: 9w
Air Draw: 420 lph / 15 SCFH*
Water Draw: 350 lph / 92 GPH*
*Air and water results will vary counting on aquarium setup


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