NSF Product and Service Listings

These NSF Official Listings are current as of Friday, July 18, 2025 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

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NSF/ANSI 245
Wastewater Treatment Systems - Nitrogen Reduction

 
Anua 
4106 Bernau Avenue
Greensboro, NC 27407 
United States 
800-787-2356 
336-547-9338
Visit this company's website

Facility : Greensboro, NC

Model Number Rated Capacity
Gallons/Day

PuraSys Model Series
PS1-4 400
PS1-5 500
PS1-6 600
PS1-7 700
PS1-8 800
PS1-9 900
PS1-10 1000
PS1-11 1100
PS1-12 1200
PS1-13 1300
PS1-14 1400


 
Bio-Microbics, Inc. 
16002 West 110th Street
Lenexa, KS 66219 
United States 
800-753-FAST 
913-422-0707
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Facility : Lenexa, KS

Model Number Rated Capacity
Gallons/Day
BioBarrier® MBR 0.5-N 500
BioBarrier® MBR 1.0-N 1000
BioBarrier® MBR 1.5-N 1500
MicroFast 0.4 400
MicroFast 0.5[1] 500
MicroFast 0.625 625
MicroFast 0.75[2] 750
MicroFast 0.9[3] 900
MicroFast 1.5[4] 1500 

[1] Beginning with serial number MCF2265B.
[2] Beginning with serial number MCF4000B.
[3] Beginning with serial number MCF3026B.
[4] Beginning with serial number MCF6006B.


NOTE: Models certified to Standard 40 require the following minimum tank sizes:
                        Pretreatment Tank  Aeration Tank  Note
      MicroFAST 0.4     380                570
      MicroFAST 0.5     500                750            Beginning with serial number 
                                                          MCF2265B.
      MicroFAST 0.625   500                938
      MicroFAST 0.75    500                1125           Beginning with serial number 
                                                          MCF4000B.
      MicroFAST 0.9     725                1350           Beginning with serial number 
                                                          MCF3026B.
      MicroFAST 1.5     1075               2250           Beginning with serial number 
                                                          MCF6006B.

 
Bionest Technologies Inc 
55, 12e Rue
C.P. 10070 
Shawinigan, QC G9T 5K7 
Canada 
866-538-5662 
819-538-5662
Visit this company's website

Facility : Shawinigan, Québec, Canada

Model Number Rated Capacity
Gallons/Day
OT-100 1000
OT-125 1250
OT-150 1500
OT-40 400
OT-45 450
OT-50 500
OT-55 550
OT-60 600
OT-70 700
OT-75 750 

NOTE: This Company distributes, sells, installs, or services their own NSF Certified systems.

 
Busse GmbH 
Zaucheweg 6
D-04316 Leipzig 
Germany 
49 341 6598425

Facility : Leipzig, Germany

Model Number Rated Capacity
Gallons/Day
BusseGT 400 400
BusseGT 500 500
BusseGT 600 600
BusseGT 800 800
BusseGT 1000 1000
BusseGT 1200 1200


 
Canwest Tanks and Ecological Systems Ltd. 
11975 Old Yale Road
Surrey, BC V3V 3X4 
Canada 
604-376-4843

Facility : Surrey, British Columbia, Canada

Model Number Rated Capacity
Gallons/Day

CWS MBBR Series
CWS-MBBR-500 500
CWS-MBBR-600 600
CWS-MBBR-1500 1500
CWS-MBBR-1000 1000
CWS-MBBR-800 800


 
E-Z Treat 
P.O. Box 176
Haymarket, VA 20618 
United States 
703-753-4770
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Facility : Catlett, VA

Model Number Rated Capacity
Gallons/Day
#600 600
D101 MODEL 600 2Pod 3Tank SIMPLEX 1200
D110 MODEL 600 2Pod 4Tank DUPLEX 1200
D111 MODEL 600 2Pod 4Tank SIMPLEX 1200
D115 MODEL 600 2Pod 3Tank DUPLEX 1200
D117 MODEL 600 1Pod 3Tank SIMPLEX 600
D118 MODEL 600 1Pod 2Tank SIMPLEX 600
D141 MODEL 600 1Pod 2Tank Gravity 600
D147-INDP MODEL 600 2Pod 4Tank DUPLEX 1200
D149 MODEL 600 1Pod 2Tank 2 pump-combo 600
#750 750
D218 MODEL 750 1Pod 2Tank SIMPLEX 750
D217 MODEL 750 1Pod 3Tank SIMPLEX 750
D240 750 1Pod 2Tank SIMPLEX OVER SPTIC 750
D241 750 1Pod 2Tank Gravity Discharge 750
D246 MODEL 750 1Pod 2Tank Gravity Feed 750
#1200 1200
D112 MODEL 1200 1Pod 4Tank SIMPLEX 1200
D113 MODEL 1200 1Pod 4Tank DUPLEX 1200
D116 MODEL 1200 1Pod 3Tank SIMPLEX 1200
D119 MODEL 1200 1Pod 2Tank SIMPLEX 1200
D142 1200 1Pod 2Tank Gravity Discharge 1200
D148-INDP MODEL 600 2Pod 3Tank DUPLEX 1200
D149 MODEL 1200 1Pod 4Tank SIMPLEX 1200
D150 1200 1Pod 4Tank DUPLEX DUAL OUTLET 1200
D151 1200 1Pod 3Tank Simplex DUAL OUTLET 1200
D102 MODEL 1200 2Pod 3Tank SIMPLEX 1500
D107 MODEL 1200 2Pod 4Tank SIMPLEX 1500
D109 MODEL 1200 2Pod 4Tank DUPLEX 1500
D114 MODEL 1200 2Pod 3Tank DUPLEX 1500
D120 MODEL 600 3Pod 3Tank DUPLEX 1500
D121 MODEL 600 3Pod 3Tank SIMPLEX 1500
D128 MODEL 600 3Pod 4Tank DUPLEX 1500
D152-INDP MODEL 1200 2Pod 4Tank DUPLEX 1500
D153-INDP MODEL 1200 2Pod 3Tank DUPLEX 1500
D201 MODEL 750 2Pod 3Tank SIMPLEX 1500
D210 MODEL 750 2Pod 4Tank DUPLEX 1500
D211 MODEL 750 2Pod 4Tank SIMPLEX 1500
D215 MODEL 750 2Pod 3Tank DUPLEX 1500
D225 MODEL 750 2Pod 2Tank SIMPLEX OVER 1500
D247-INDP MODEL 750 2Pod 4Tank DUPLEX 1500
D248-INDP MODEL 750 2Pod 3Tank DUPLEX 1500
D249 MODEL 750 1Pod 2Tank 2 pump-combo 750 

NOTE: Each model may contain a combination of treatment pods that are either a 600 GPD module,
      a 750 GPD module or a 1200 GPD module. Various configurations of these modules are used
      to provide the essential wastewater treatment necessary for Standard compliance.

 
Ecological Tanks, Inc. 
2247 Highway 151 North
Downsville, LA 71234 
United States 
800-277-8179 
318-644-0397
Visit this company's website

Facility : Downsville, LA

Model Number Rated Capacity
Gallons/Day
AA500-35NR-C[1] [3] [4] [5] [6] 500
AS600+4NR w/EZ top[1] [2] [3] 600 

[1] Suffix NR denotes nitrogen reduction. Models AS600+4NR w/EZ top AA500-35NR, and
    AA500-35C NR complete models include a pretreatment tank.
[2] Model AS600+4 NR also as a component of the models AS600 5+5 TRIO NR, AS600 5+75 TRIO
    NR, AS600 4+75-C NR, AS600+5-C NR, AS600 +5 CP NR, and AS600 +5 C CP NR have not been
    tested and Certified by NSF.
    Complete models:
    AS600 5+5 TRIO NR includes a 500 gallon pretreatment tank and a 500 gallon pump tank.
    AS600 5+75 TRIO NR includes a 500 gallon pretreatment tank and a 750 gallon pump tank.
    AS600 4+75-C NR includes a 400 gallon pretreatment tank and a 750 gallon pump tank.
    AS600 +5-C NR includes a 500 gallon pretreatment tank.
    AS600 +5 CP NR includes a 500 gallon detached pretreatment tank.
    AS600 +5 C CP NR includes a 500 gallon detached pretreatment tank.
[3] Nitrogen analysis performed using HACH methods.
[4] Model AA500 also as a component as model AA500-4075NR. Complete model AA500-4075NR has
    not been tested and Certified by NSF. Complete model AA500-4075 includes a 400 gallon
    pre-treatment tank and a 750 gallon pump tank.
[5] Model AA500 also as a component of the model AA500-4090NR. Complete model AA500-4090NR
    has not been tested and Certified by NSF. Complete model AA500-4090NR includes a 400
    gallon pretreatment tank and a 900 gallon pump tank.
[6] Suffix C denotes a concrete tank.


NOTE: Only products bearing the NSF Mark on the product are Certified.

 
Eljen Corporation 
90 Meadow Road 
Windsor, CT 06095 
United States 
800-444-1359 
860-610-0426

Facility : Windsor, CT

Model Number Rated Capacity
Gallons/Day

Eljen GSF Denitrification System
DN450 450
DN600 600
DN800 800
DN1000 1000


 
Fuji Clean USA, LLC 
41-2 Greenwood Road
Brunswick, ME 04011 
United States 
207-406-2927

Facility : Thomson, GA

Model Number Rated Capacity
Gallons/Day
CEN10 1000
CEN14 1350
CEN5 500
CEN7 700


Facility : Brunswick, ME

Model Number Rated Capacity
Gallons/Day
CEN5 500
CEN7 700
CEN10 1000
CEN14 1350 

NOTE: This Company maintains a list of authorized representatives who distribute, sell,
      install, or service their NSF Certified systems.

 
Hoot Systems, LLC 
2885 Highway 14 East
Lake Charles, LA 70607 
United States 
888-878-4668 
337-474-2804
Visit this company's website

Facility : Lake Charles, LA

Model Number Rated Capacity
Gallons/Day
ANR-450 450
ANR-500 500
ANR-675 675
ANR-900 900
ANR-1100 1100
NR-600 600


 
Hydro-Action Industries 
1919 Jim Neu Drive
Plymouth, IN 46563 
United States 
800-370-3749 
574-936-2542

Facility : Plymouth, IN

Model Number Rated Capacity
Gallons/Day
AN-400[1] 450
AN-500 550
AN-600 660
AN-800 800
AN-1100 1100 

[1] Model AN-400  also as a component of the model AN-IVS. Complete model AN-IVS has not
    been tested by NSF. Complete model AN-IVS includes a pretreatment tank of 450 gallons
    and an aerobic treatment unit of 950 gallons.


 
Infiltrator Water Technologies, LLC, (formerly Delta Treatment Systems, LLC) 
4 Business Park Road
Old Saybrook, CT 06475 
United States 
225-665-6162
Visit this company's website

Facility : Walker, LA

Model Number Rated Capacity
Gallons/Day

ECOPOD Series
E50-N[1] [2] 500
E50-N - IM1060[3] 500
E60-N[1] [2] 600
E60-N - IM1060[3] 600
E75-N[1] [2] 750
E75-N - IM1060[3] 750
E100-N[1] 1000
E100-N - IM1530[4] 1000
E150-N[1] 1500 

[1] Nitrogen analysis performed using HACH methods.
[2] The use of the Infiltrator CM1060 polypropylene tank is approved within the E50-N, E60-N
    and E75-N models.
[3] Suffix IM1060 denotes molded poly tank.
[4] Suffix IM1530 denotes polypropylene tank.


 
Norweco, Inc. 
Firelands Industrial Park
220 Republic Street 
Norwalk, OH 44857 
United States 
419-668-4471
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Facility : Norwalk, OH

Model Number Rated Capacity
Gallons/Day
Hydro-Kinetic 600 FEU 500
Hydro-Kinetic 600 FEU 600
Hydro-Kinetic 800 FEU 800
Hydro-Kinetic 1000 FEU 1000
Hydro-Kinetic 1250 FEU 1250
Hydro-Kinetic 1500 FEU 1500
Hydro-Kinetic 600 FEU LP[1] 500
Hydro-Kinetic 600 FEU LP[1] 600
Hydro-Kinetic 800 FEU LP[1] 800
Hydro-Kinetic 1000 FEU LP[1] 1000
Hydro-Kinetic 1250 FEU LP[1] 1250
Hydro-Kinetic 1500 FEU LP[1] 1500
Hydro-Kinetic Green 600 FEU 600
Singulair TNT-500 500
Singulair TNT-500 600
Singulair TNT-750 750
Singulair TNT-750 800
Singulair TNT-1000 1000
Singulair TNT-1250 1250
Singulair TNT-1500 1500
Singulair TNTLP-500[1] 500
Singulair TNTLP-500[1] 600
Singulair TNTLP-750[1] 750
Singulair TNTLP-1000[1] 1000
Singulair TNTLP-1250[1] 1250
Singulair TNTLP-1500[1] 1500
Singulair TNTOP-500[2] 500
Singulair TNTOP-500[2] 600
Singulair TNTOP-1000[2] 1000
Singulair TNTOR-500[3] 500
Singulair TNTOR-500[3] 600
Singulair Green TNT-500 500
Singulair Green TNT-500 600
Singulair Green TNT-750 750 

[1] Suffix LP denotes low profile tank.
[2] Suffix OP denotes one piece tank.
[3] Suffix OR denotes Oregon model.


 
Orenco Systems Inc. 
814 Airway Avenue
Sutherlin, OR 97479 
United States 
800-348-9843 
541-459-4449
Visit this company's website

Facility : Sutherlin, OR

Model Number Rated Capacity
Gallons/Day
AdvanTex AX20RT-UV 500
AdvanTex AX20 500
AdvanTex AX20RT-UV 600
AdvanTex AX20 600
AdvanTex AX25RT-UV 625
AdvanTex AX20 625
AdvanTex AX25RT-UV 750
AdvanTex AX20 750
AdvanTex AX20RT 2 pod 1200
AdvanTex AX20 1200
AdvanTex AX25RT 2 pod 1250
AdvanTex AX20 1250 

NOTE: This company may sell products complying with all applicable requirements for
      Certification nationally and internationally, but has advised NSF of authorized
      representatives physically located in the following:
      
      California       Georgia          Idaho            New Jersey       Ohio
      Oregon           Pennsylvania     Texas
      
      Contact the Listed company directly for further product information and availability in
      your area.

 
Premier Tech Water and Environment Ltd. 
1 avenue Premier
Rivière-du-Loup, QC G5R 6C1 
Canada 
450-471-8444
Visit this company's website

Facility : Joliette, Québec, Canada

Model Number Rated Capacity
Gallons/Day

Ecoflo Coco ECDN Model Series Concrete Units (C)[2] [3]
Ecoflo Coco ECDn-XXX C 500
Ecoflo Coco ECDn-XXX C 600
Ecoflo Coco ECDn-XXX C 700
Ecoflo Coco ECDn-XXX C 750
Ecoflo Coco ECDn-XXX C 1000 

[2] Suffix XXX denotes the rated capacity.
[3]                                                    Polyethylene Units (P)
                                                       Ecoflo Units - Size		
                                              2.8    3.4    3.8    4.0    4.5    5.0    6.5
                                                       Rated Capacity (gpd)		
    Ecoflo Coco ECDN    ECDn-XXX P                   500    600    600    700    750    1000

Ecoflo Coco ECDN Model Series Polyethylene Units (P)[1] [2]
Ecoflo Coco ECDn-XXX P 500
Ecoflo Coco ECDn-XXX P 600
Ecoflo Coco ECDn-XXX P 865
Ecoflo Coco ECDn-XXX P 1000
Ecoflo Coco ECDn-XXX P 1100 

[1]                                                    Polyethylene Units (P)
                                                       Ecoflo Units - Size		
                                              2.8    3.4    4.1    5.7    6.5    7.3
                                                       Rated Capacity (gpd)		
    Ecoflo Coco ECDN    ECDn-XXX P                   500    600    865    1000   1100
[2] Suffix XXX denotes the rated capacity.


NOTE: This Company distributes, sells, installs, or services their own NSF Certified systems.
NOTE: Only products bearing the NSF Mark on the product are Certified.

 
SeptiTech® 
69 Holland Street
Lewiston, ME 04240 
United States 
800-318-7967 
207-333-6940
Visit this company's website

Facility : Lewiston, ME

Model Number Rated Capacity
Gallons/Day
STAAR™ D 0.5[1] 500
STAAR™ D 0.75[1] 750
STAAR™ D 1.2[1] 1200
STAAR™ D 1.0[1] 1000
STAAR™ D 1.5[1] 1500 

[1] Suffix D denotes denitrification.


NOTE: Only products bearing the NSF Mark on the product, product packaging, and/or
      documentation shipped with the product are Certified.
NOTE: This company may sell products complying with all applicable requirements for
      Certification nationally and internationally, but has advised NSF of authorized
      representatives physically located in the following:
      
      Arizona          California       Connecticut      Maine            Maryland
      Massachusetts    New Hampshire    North Carolina   Ohio             Rhode Island
      Vermont          Washington       West Virginia
      
      Contact the Listed company directly for further product information and availability in
      your area.
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