CLASSIC EXTERNAL PROTEINSKIMMER As one of the Reef Octopus Classic Series skimmers, this 150ext is an recirculating external protein skimmer that will provide great performance with the enhanced control for marine aquariums up to 200 gallons. The Classic 150ext is hand crafted of high quality cast acrylic, o-ring sealed union pump mount, bubble diffuser with performance provided by the efficient Reef Octopus Aquatrance 1000s Skimmer Recirculation Pump. The skimmer features a recirculation mounted pump with a precision gate valve for optimizing the water level within the protein skimmer. The collection cup has a quick release neck for easy removal for cleaning. Key Benefits found on the Classic 150ext Skimmer Recirculating Design enhances performance and control Bubble Diffusing Chamber and Hybrid Body that naturally reduces and stabilizes the foam production;This means less turbulence in the neck area and more contact time for organics to rise and collect Over-sized Air Silencer for quiet operation and airline mount Collection Cup with flow directional guide, drain and unit venting Precision Control with the easy to turn output flow valve Efficient Performance with the Reef Octopus Aquatrance 2000s recirculatingpinwheel pump Bioload Handling (Excluding sump) - Light bioload – 200 Gallons - Medium bioload – 160 Gallons - Heavy bioload – 120 Gallons Features Recirculating Design for Enhanced Control & Performance Reef Octopus Aquatrance 2000s Skimmer Pump Effective Venturi Air Injection System Refined Hybrid (half cone) Skimmer Body Easy to Remove Cup with Drain Precision Water Level Control Output Valve Air Silencer Solid Acrylic Construction Specifications Body Size: 6in Footprint: 12.2in x 10.4in Neck Size: 3in Total Height: 25.6in Output Size: 40mm/1.25in pvc* Output Height:10.8in Inlet Size:1/2in union / 5/8in barb Max Feed Rate: 520GPH The Reef Octopus Classic 150ext protein skimmer uses high grade metric plumbing parts and includes US standard plumbing adapters for ease of installation. *Note:This skimmer requires an additional plumbing and feed pump with the suggest feed rate of 1.5-2 times the total system volume. Pump Information Reef Octopus Aquatrance 2000s Pinwheel Pump Max Flow: 198gph Max Air: 720L/H, 25.2SCFH Power Consumption: 18 Watts Dimensions: 5.3in x 2.8in x 5.7in *Air and water results will vary depending on aquarium setup Warranty -Two(2) year on pump body - One(1) year on pump rotor - One(1) year on Skimmer Body