Reef Octopus

Regal 300SSS 12" Space Saving Protein Skimmer (VarioS)

In stock

- +

BRS Recommended for tanks up to:

  • Heavy Bioload (Most Common) - 350 Gallons
  • Medium Bioload - 550 Gallons
  • Light Bioload - 700 gallons


Reef Octopus In Sump 12" Space Saving Protein Skimmer from Reef Octopus - with a controllable VarioS DC pumps to process more or less water, depending on your setup with a pump integrated into the body of the skimmer saving precious space in the sump.

  • Footprint - 15.2″ x 13″
  • Height - 25.6″
  • Recommended Water Height: 8"-10"



Reef Octopus Regal Skimmers now incorporate the new VarioS S pinwheel series of pumps. The new pumps are DC powered allowing for several advantages over traditional AC style pumps. The VarioS pumps can be fully controlled by a 3rd-party controller, or through the included control unit. With 5 different preset speeds and multiple feed modes, you can fine-tune Regal skimmers for superior performance on your particular system.


Space saving protein skimmers have the pumps encased within the body of the skimmer creating a much smaller footprint requirement. These types of skimmers are normally a slight bit taller than their counterpart, the increased height maximizes the amount of contact/dwell time and reaction chamber size allowing for greater filtration capabilities.


Filtration Handling

Well Stocked Tank - Rated up to 350 gallons

Medium Stocked Tank - Rated up to 550 gallons

Light Stocked Tank - Rated up to 700 gallons



  • VarioS-6 DC controllable pump
  • Apex Ready
  • Safety overflow float switch for cup
  • High quality cast acrylic
  • Easily disassembled for cleaning
  • Hybrid Cone Shape
  • High volume air intake
  • Body Drain
  • Quiet operation
  • Solid construction
  • Easily removed collection cup
  • Detachable controller with waterproof union
  • 3rd-Party controller input (0-10V)
  • 2 year warranty on pump body
  • 1 year warranty on pump rotor (pinwheel impeller)
  • 1 year warranty on skimmer body


Skimmer Specifications:

  • Body Diameter: 12"
  • Neck Size: 7"
  • Foot Print: 15.2" x 13”
  • Total Height: 25.6”
  • Output Size: 50mm - 1.5”
  • Recommended sump water depth: 8"-10"


VarioS-6 S Pinwheel Pump Features:

  • Air Draw: 1200-2400 LPH / 42-84 SCFH*
  • Power Consumption: 35-70W
  • Voltage: DC 36V

*Aquarium set up will determine air and water results.


What's Included?

  • Regal 300SSS INT Protein Skimmer
  • VarioS-6 S Pinwheel Pump
  • VarioS Control Unit
  • Skimmer Cup Float Switch
  • Output Gate Valve
  • Metric to Standard Adapter


Available Accessories

  • Neck Cleaner: CL-300
  • Neck Extension: NK-300


pdf Regal Skimmer Setup Guide

pdf VarioS Controller Quick Start Guide

More Information
UPC 6950291251763
Skimmer Type In-Sump / Internal
Capacity Light Bioload - Up to 700 Gallons
Medium Bioload - Up to 550 Gallons
Heavy Bioload - Up to 350 Gallons
Dimensions 15.2"L x 13"W x 25.6"H
Diameter 12" Body, 7" Neck
Rec. Water Level 8" - 10"
Output Size 1.5" (1-1/2 in.)
Air Draw 1200 - 2400 LPH
Flow Rate 528 GPH
Pump Model VarioS 6-S
Pump Rotor Type Pinwheel
Variable Speed Yes
Power Type DC
Power Consumption 35 - 70 Watts
Power Cord Length 6 Feet
Warranty 2 Years (pump body), 1 Year (pump rotor), 1 Year (skimmer body)
Pump Included Yes
Control Type Digital DC Control (Controller Included)
Write Your Own Review
You're reviewing:Regal 300SSS 12" Space Saving Protein Skimmer (VarioS)
Your Rating
Only registered users can write reviews. Please or

Product Questions

How tall is the base chamber without the collection cup?
Question by: Chris on Nov 23, 2023, 8:11 PM
Hi there, thank you for reaching out! It would be about 16.5" without the collection cup.
Answer by: Grace (BRS Staff) on Jan 25, 2024, 12:22 PM
Is this product safe for us with Ozone
Question by: Marc Knutsen on Nov 21, 2022, 12:27 PM
Thanks for the question! Reef Octopus skimmers are made of 100% ozone-safe materials. Please let us know if we can help with anything else!
Answer by: Kyle Thomas (BRS Staff) on Nov 26, 2022, 11:19 AM