Classic Protein Skimmer EXT (2 models available)


Classic Protein Skimmer EXT (2 models available)

Over a decade of proven reliability.

Did you know?

We are the first protein skimmer manufacturer in the world that designs and produces our own skimmer pumps. Our skimmer pumps have been specifically engineered to enhance and increase the efficiency of our protein skimmers.

Product Name: OCTO Classic Protein Skimmers

Model/Type: EXT

Model No.: Classic 110-EXT, Classic 150-EXT

Features & Benefits

  • Superior out-of-sump performance
  • AQ pump specifically made for protein skimmer
  • Output designed for bubble-free outflow
  • Quiet operation
  • High quality hand-made acrylic construction
  • Waste drainage
  • Easy maintenance


Featuring a small footprint, the OCTO series Classic an out-of-sump protein skimmer. Classic Skimmers features high-quality cast acrylic body construction, easy disassembly for maintenance and is run by our very own “air shredding” Aquatrance pump. A feed pump is required as water is drawn directly from the sump.

Available in 2 models – Classic 110-EXT and Classic 150-EXT  features hybrid conical body with a vented valve output and a precision control gate valve.


Warranty (against manufacturing defect):

2 years* – pump motor only


What's included

Article CodeItemsClassic 110-EXTClassic 150-EXT
Model No.QtyModel No.Qty
aTop Cover11
bCollection Cup11
cPlug/ Waste Drain11
gO Ring22
iAir hose11
kO Ring11
lAquatrance PumpAQ-1000S1AQ-2000S1
mO Ring11
nWater inlet11
oSkimmer Body11
pO Ring11
qNon-syphon Bar11
rGate valve11
uWater Outlet Pipe11

Technical Data

1. Skimmers

ProductWet/DryPump PowerCup DiameterNeck DiameterFootprintHeightOutput SizeTank Volume
WWmminchmminchmminchmminchLUS Gal
Classic 110-EXTDry891204.7602.426523510.49.358022.90ø40mm(1-1/4″)500132
Classic 150-EXTDry17181505.9803.231026512.210.465025.60ø40mm(1-1/4″)800211

2. Skimmer Pump

ProductModel No.Wet/DryAir IntakePowerMaximum Flow RateConnection Size (outlet)
Classic 110-EXTAQ-1000SBoth420111454120893509235092ø25(3/4″)
Classic 150-EXTAQ-2000SBoth7201907191901718750198750198ø25(3/4″)

Electrical or other Certification
Pumps (Aquatrance) – CE certified

Explosion Charts

Explosion Chart for Classic 110-EXT

Explosion Chart for Classic 110-EXT

Explosion Chart for  Classic 150-EXT and Classic 200-EXT


Explosion Chart for Classic 150-EXT and Classic 200-EXT




Not Available

Accessories / Parts