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FujiMAC

Fuji Mac 100R2 Septic Air Pump | 600-750 GPD Aerobic System

$353.00

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Need help confirming fitment? Call 940-828-4004

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$353.00

Quiet, energy-efficient 100 LPM septic air pump for many residential aerobic treatment systems.

✓ Genuine FujiMAC 100RII / 100R2 air pump

✓ 100 LPM (3.5 CFM) rated airflow

✓ Low 74-watt power consumption

✓ Quiet, oil-free linear diaphragm operation

✓ Used on certified 600–900 GPD aerobic treatment systems

Not sure this is the right pump? Call us at 940-828-4004 or email support@septicstop.com before ordering.

Will the FujiMAC 100R2 Fit My Septic System?

The FujiMAC 100RII, commonly referred to as the FujiMAC 100R2, is a 120V linear diaphragm air pump rated at 100 liters per minute (3.5 CFM). It is used in residential aerobic treatment systems requiring a 100 LPM aerator.

Common applications include certain models from:

  • Aqua Aire / Aqua Safe
  • EnviroFlo
  • Fuji Clean USA 
  • Pro-Flo

The 100R2 may also be suitable as a replacement for other 100 LPM septic air pumps when the treatment system manufacturer and applicable regulations permit an equivalent replacement.

Important: Do not select a replacement pump based only on airflow or the physical size of your existing aerator. Confirm the required airflow, operating pressure, voltage, outlet connection, and approved aerator requirements for your septic system before ordering.

If you are unsure which pump you need, send us the model number or a photo of your existing air pump and we can help you identify the appropriate replacement.

FujiMAC 100R2 Septic Air Pump

The FujiMAC 100RII is a compact, quiet and energy-efficient linear diaphragm air pump designed for continuous aeration applications. Its 100 LPM airflow makes it a popular choice for residential aerobic septic systems and other wastewater treatment applications requiring dependable continuous airflow.

The FujiMAC 100R2 uses an oil-free diaphragm design and consumes only approximately 74 watts at its normal operating pressure. The pump is designed for continuous-duty operation and provides approximately 100 LPM (3.5 CFM) at 2.6 PSI.

Its compact housing, quiet operation and serviceable diaphragm design make the FujiMAC 100R2 a practical replacement option for homeowners and septic service professionals working with compatible aerobic treatment systems.

Key Features

  • 100 LPM airflow: Provides approximately 3.5 CFM at the manufacturer's normal operating pressure.
  • 2.6 PSI normal operating pressure: Designed to produce rated airflow at approximately 18 kPa.
  • Low power consumption: Uses approximately 74 watts under normal operating conditions.
  • Quiet operation: Approximately 40–41 dB under typical test conditions.
  • Oil-free design: Linear diaphragm operation requires no lubricating oil.
  • Continuous-duty operation: Designed for applications requiring continuous aeration.
  • Compact size: Small footprint makes the pump easy to fit into many existing aerator installations.
  • Serviceable: Replacement diaphragms and maintenance components are available for the FujiMAC RII series.

What's Included

  • 1 FujiMAC 100RII / 100R2 linear air pump
  • Factory-installed power cord
  • Standard FujiMAC outlet connection & barb fitting
  • Manufacturer documentation included with the pump

Specifications

Manufacturer FujiMAC
Model MAC100RII (100R2)
Pump Type Linear diaphragm air pump
Rated Voltage 120V AC, 60 Hz
Airflow 100 L/min (3.5 CFM)
Normal Operating Pressure 2.6 PSI (18 kPa)
Power Consumption 74 W
Current 1.7 A or less
Noise Level Approx. 40–41 dB
Weight Approx. 11 lb (5 kg)
Dimensions Approx. 6 3/8" × 7 1/8" × 7 1/2"
Outlet 3/4" outside diameter
Duty Rating Continuous
Application Aerobic septic and wastewater treatment aeration
Shipping Information

Most in-stock orders placed before 2 PM Central Time ship the same business day.

Typical transit time is approximately 1–4 business days, depending on destination and carrier conditions.

Tracking information will be provided when your order ships.

Warranty Information

FujiMAC's standard manufacturer warranty is subject to the manufacturer's current warranty terms and proof-of-purchase requirements. Additional warranty coverage may apply when offered by an authorized distributor or retailer.

Contact SepticStop if you have questions regarding warranty coverage before ordering.

Is the FujiMAC 100R2 the same as the FujiMAC 100RII?

Yes. FujiMAC identifies the model as the MAC100RII, using the Roman numeral II. It is commonly written and searched for as the FujiMAC 100R2.

Can the FujiMAC 100R2 replace another 100 LPM air pump?

It may be suitable for systems designed to use a 100 LPM aerator, but airflow alone should not be used to determine compatibility. Verify the required pressure, voltage, outlet connection, and treatment-system approval requirements before replacing the existing pump.

What septic systems use the FujiMAC 100R2?

Gulf Coast Testing currently lists the FujiMAC MAC100RII as an approved aerator for several certified aerobic treatment systems, including:

  • Aqua Aire / Aqua Safe
  • EnviroFlo
  • Fuji Clean USA 
  • Pro-Flo

Fuji Clean USA also specifies the FujiMAC 100RII for its CE10 and CEN7 treatment systems.

Is the FujiMAC 100RIIA the same as the 100RII?

The MAC100RIIA is an alarm-equipped version of the FujiMAC 100RII. Although the air pump specifications are closely related, treatment system certifications may specifically require the RIIA alarm version. Confirm the exact approved model before substituting one version for another.

How much electricity does the FujiMAC 100R2 use?

FujiMAC lists normal power consumption at approximately 74 watts at rated pressure. Because septic aerators normally operate continuously, an efficient air pump can make a meaningful difference in long-term electrical consumption.

Can the FujiMAC 100R2 be rebuilt?

Yes. The FujiMAC RII series uses replaceable service components, including diaphragm assemblies. Be sure to select a rebuild kit specifically compatible with the FujiMAC 100RII.

Can I replace my septic air pump myself?

Requirements vary by jurisdiction and septic system. The customer is responsible for ensuring that installation, service, or replacement complies with all applicable laws, regulations, permits, and manufacturer requirements. When required, use a qualified septic professional.

Not Sure Which Air Pump You Need?

We can help you identify the correct replacement before you order. Have your existing pump model number or septic system information available when you contact us.

Call: 940-828-4004
Email: support@septicstop.com

Important Notice: The customer is responsible for ensuring that installation, repair, or replacement work complies with all applicable local laws, regulations, permitting requirements, treatment-system approvals, and manufacturer instructions. If you are unsure, consult the appropriate local authority or a qualified septic professional.

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