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NSF/ANSI 40
Residential Wastewater Treatment Systems

 
Desoto Concrete Products, Inc. 
220 Highway 305 North
Olive Branch, MS 38654 
United States 
888-445-9347 
662-890-1688

Facility : New Albany, MS

Model Number Rated Capacity
Gallons/Day		 Classification
H-TWO-O Series 25A[1] [2] 500 Class I
H-TWO-O Series 25T[3] [4] 500 Class I
H-TWO-O Series 252P[5] 520 Class I
H-TWO-O Series 265A[1] 650 Class I
H-TWO-O Series 265P[5] 650 Class I
H-TWO-O Series 275A[1] [2] 750 Class I
H-TWO-O Series 275T[3] [6] 750 Class I
H-TWO-O Series 275AA[7] 780 Class I
H-TWO-O Series 275AT[8] 780 Class I
H-TWO-O Series 2100A[1] [2] 1000 Class I
H-TWO-O Series 2100T[3] 1000 Class I
H-TWO-O Series 212P 1200 Class I
H-TWO-O Series 35A[1] [3] [4] [5] 500 Class I
H-TWO-O Series 35T[2] [6] [7] 500 Class I
H-TWO-O Series 35A[1] [8] 520 Class I
H-TWO-O Series 35AA 520 Class I
H-TWO-O Series 35AA1 520 Class I
H-TWO-O Series 35AA8 520 Class I
H-TWO-O Series 355P 550 Class I
H-TWO-O Series 36A1[1] 600 Class I
H-TWO-O Series 375A[1] [3] 750 Class I
H-TWO-O Series 375A2[9] 750 Class I
H-TWO-O Series 375T[2] [10] 750 Class I
H-TWO-O Series 375AA[11] 780 Class I
H-TWO-O Series 375AT[12] 780 Class I
H-TWO-O Series 3100A[1] [3] 1000 Class I
H-TWO-O Series 3100T[2] 1000 Class I 

[1] Suffix A denotes a tampered wall tank.
[2] Model H-TWO-O Series 25A, 275A, and 2100A also as a component of the H-TWO-O Series
    25A1, 275A1, and 2100A1. Complete model H-TWO-O Series 25A1, 275A1, and 2100A1 includes
    a post treatment pump tank in addition to the H-TWO-O Series 25A, 275A, and 2100A. The
    pump chamber was not tested and is not included as a component of the Certified model.
[3] Suffix T denotes a tampered wall tank.
[4] Model H-TWO-O Series 25T also as a component of the H-TWO-O Series 25T1 and 25T2 with
    effluent pump chamber. The pump chamber was not tested and is not included as a
    component of the Certified model.
[5] Suffix P denotes polyethylene tanks.
[6] Model H-TWO-O Series 275T also as a component of the H-TWO-O Series 275T1 and 275T2 with
    effluent pump chamber. The pump chamber was not tested and is not included as a
    component of the Certified model.	
[7] Suffix AA indicates alternate (as in 750 GPD to 780 GPD) and a one piece tank.
[8] Suffix AT indicates alternate (as in 750 GPD to 780 GPD) with a tampered wall and two
    piece tank.
[9] Model H-TWO-O Series 375A2 is approved with a pretreatment chamber sized between 500 and
    750 gallons.
[10] Model H-TWO-O Series 375T also as a component of the H-TWO-O Series 375T1 and 375T2 with
     effluent pump chamber. The pump chamber was not tested and is not included as a
     component of the Certified model.
[11] Suffix AA indicates alternate (as in 750 GPD to 780 GPD) and a one piece tank.
[12] Suffix AT indicates alternate (as in 750 GPD to 780 GPD) with a tampered wall and two
     piece tank.


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:
      
      Mississippi      Texas
      
      Contact the Listed company directly for further product information and availability in
      your area.
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Number of matching Products is 27
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