Skimz Monzter SM302 External Protein Skimmer

Skimz Monzter SM302 External Protein Skimmer
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Skimz Monzter SM302 External Protein Skimmer

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SKU: 208146
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Quick Overview

The Skimz E-Series SM302 External Protein Skimmer gives you high performance skimming at a great value.

  • Rated for tanks 396 - 1057 gallons (1500-4000 Liters)

  • BRS Recommended for tanks up to:

    • Heavy Bioload (Most Common) - 370 gallons

    • Medium Bioload - 480 gallons

    • Light Bioload - 640 gallons

  • Air intake: 761 GPH (2880 LPH), making it capable of handling a higher water throughput.
  • Low power consumption and high performance

  • Features (3) Skimz ES5000 Needlewheel Pumps

  • Skimmer requires an additional feed pump of 925 GPH

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Full Details

Skimz Manufacturer's Manual



  • Integrated cylindrical and cone shape chambers help reduce bubble bursting and surface agitation
  • Bubble Plate Design - reduces turbulence
  • Maximum air flow capacity in compact design
  • Micro-adjustable valve for precise water level control
  • Twist-lock neck for easy collection cup removal
  • Quality construction - CNC machined parts and Georg Fischer fittings
  • Requires feed pump of 925 GPH (3500 LPH)
  • 3/4" barbed feed input
  • 63mm metric PVC output


Skimmer Specifications:

  • Body Diameter: 11.81" (300mm)
  • Foot Print: 15.39” x 21.26” (391mm x 540mm)
  • Total Height: 25.39” (645mm)
  • Cup Diameter: 302mm


(3) ES5000 Needlewheel Pump Features:

  • Skimz worked with an Italian pump manufacturer, using advanced material for the needlewheel impeller, seamless-coated rare earth magnet for durability and high performance.
  • Air Draw: 761 GPH (2880 LPH)
  • Power Consumption: 60 Watts


Skimz Warranty

  • Warranty for Original Purchaser against defective material and workmanship that occurs during normal use.
  • 2 Year Warranty on skimmer body
  • 1 Year Warranty on pump



1 Item

  • Efficient Skimmer for Big Tanks By Dan on 6/20/2014

    I have been running the Skimz 302 for about two years now on my 650 Gallon reef aquarium. This skimmer is very efficient and will reduce the level of organic matter in even a highly stocked aquarium. Although the skimmer looked complex to begin with, the installation was surprisingly simple. The skimmer allows for very precise adjustment of the bubble size and flow. The only challenges I ran into was integrating the US PVC sizes into the included european sizes. Also, the skimmer o-rings benefit from occasional plumbers grease to ensure a good seal over time.

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