AF-100 Alpha-Fuge Sump 4th Gen

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Be Confident with the Eshopps Alpha Class Fuge Sumps.


The Alpha-Fuge sumps are designed for the advanced hobbyist, incorporating Eshopps’ unique Triple Water Channel Design and an easy access filter sock with a clear removable lid. The Alpha-Fuge Refugium Sump features a large protein skimmer compartment with dosing tube and a probe holder cradles. In addition, Alpha-Fuge sumps feature a large return pump compartment with built in water level ATO float valve and a hang on multi-purpose media tray. The media tray can be used as an in-sump passive media filter. Additionally, the refugium compartment has a removable algae blocker panel along with a built-in bubble trap with easy change filter sponge. The Alpha-Fuge is designed to meet all the demands an advanced hobbyist can dream of.

  • Easy maintenance
  • Flexible, advanced design features
  • Prefilter sponges reduce debris and bubbles
  • Filter Socks Included



  • Total Water Volume: 22 US Gallons
  • Dimensions: 24”L x 14”W x 16”H
  • Skimmer Chamber: 8” x 13.5”
  • Refugium Chamber: 9" x 8"
  • Return Pump Chamber: 6” x 13.5”
  • Filter Socks: 1x Rectangular sock
  • Removable Media Tray: 3" x 3"
  • Sump Flow Rate: 750 GPH



Model Dimensions Filter Sock

Skimmer Size

Refugium Size Return Size Recommended Tank Size
AF-100 24" x 14" x 16" 1x Rectangular 8” x 13.5” 9" x 8" 6” x 13.5” 75 - 125 Gallons
AF-200 30" x 14" x 16" 1x Rectangular 12” x 13.5” 12” x 13.5” 6” x 13.5” 125 - 225 Gallons
AF-300 36" x 16" x 16" 1x 7" 14" x 15.5" 14" x 15.5" 8" x 15.5" 225 - 300 Gallons




What's Included?

1x AF-100 Alpha-Fuge Sump

2x 1" Bulkheads

2x Flexible Drain Hoses

1x Rectangular Filter Sock


More Information
UPC 689076892445
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Product Questions

Is 22 gallons the tota volume of water the sump can fix or the total volume when operating using built in water valve and water level marker,?
Question by: Joseph on Mar 21, 2022, 3:04 PM
Hey Joseph, thanks for the question! 22 is the total water volume of the sump. The water level when installed is dependent on what you set it at.
Answer by: James Johnson (BRS Staff) on Mar 24, 2022, 2:28 PM
What is the water level in the Skimmer section and is it adjustable with with the built in float valve
Question by: Austin Howard on Feb 25, 2022, 7:28 AM
Hey Austin, thanks for the question. Sump water level is going to be variable based on pump strength, drain acceptance, and filled volume. The float is for you to have the ability to hook in and RODI unit for top off. If you plan to go this route we recommend using a solenoid for added precautions.
Answer by: James Johnson (BRS Staff) on Mar 8, 2022, 4:19 PM