Septic Tanks & Systems

Superior Concrete manufactures Maine's most trusted precast concrete septic systems — precast concrete septic tanks, lift stations, pump tanks, and leaching products. Whether you're specifying a residential system or a commercial installation, our precast concrete products are watertight, durable, and engineered to last decades longer than plastic or polymer alternatives. Browse our septic system categories below.

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Categories

Use

Use

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Class

Size

Size

Showing 1-21 of 21 items

Showing 1-21 of 21 item(s)

Active filters

  • Use: Commercial
  • Use: Sanitary
  • Class: H-10
  • Class: Pedestrian
  • Class: New Style
  • Class: Old Style

Active filters

  • Use: Commercial
  • Use: Sanitary
  • Class: H-10
  • Class: Pedestrian
  • Class: New Style
  • Class: Old Style
12 Outlet D-Box | Superior Concrete

12 Outlet D-Box

  • Category:D-Boxes
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Concrete
  • Weight:Base: 1,165# / Cover: 770#
  • Interior Dimensions:86"L x 29.75"W x 16"H
  • Exterior Dimensions:90"L x 33.75"W x 21"H
  • Invert Out:~5.5"
  • Invert In:~6.5"
Datasheets
12 Outlet D-Box
2000 Regular | Superior Concrete

2000 Regular

  • Category:Regular Tanks
  • Use:Commercial, Residential
  • Class:H-10, Old Style
  • Type:Septic Tank
  • Size:2000 gallon
  • Weight:16,552 lbs
  • Capacity:2,000 gallons
  • Exterior Dimensions:74" H x 6'4" W x 10'6" L
  • Invert Out:60"
Datasheets
2000gal Regular Septic Tank
3 Outlet Bottom-Feed D-Box | Superior Concrete

3 Outlet Bottom-Feed D-Box

  • Category:D-Boxes
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Concrete
  • Weight:Base: 145# / Cover: 55#
  • Interior Dimensions:12"L x 12"W x 8.75"H
  • Exterior Dimensions:20.25"L x 20.25"W x 13.25"H
  • Invert Out:5.5"
  • Invert In:3.5"
Datasheets
3-Outlet Bottom Feed D-Box
3 Outlet D-Box | Superior Concrete

3 Outlet D-Box

  • Category:D-Boxes
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Concrete
  • Weight:Base: 55# / Lid: 22#
  • Interior Dimensions:8"L x 8"W x 10"H
  • Exterior Dimensions:11.5"L x 11.5"W x 13.5"H
  • Invert Out:3"
  • Invert In:4"
Datasheets
3 Outlet D-Box
4x8 End Feed Flow Diffusers | Superior Concrete

4x8 End Feed Flow Diffusers

  • Category:Flow Diffusers
  • Use:Commercial, Residential
  • Class:H-10
  • Type:Concrete
  • Weight:2,225 lbs
  • Capacity:140 gal
  • Interior Dimensions:3'-4 3/4" x 7'-4 3/4" x 9"
  • Exterior Dimensions:4' x 8 x 1'-1"
  • Invert Out:6.5"
  • Invert In:6.5"
Datasheets
4x8 Endfeed Chamber
4x8 Side Feed Flow Diffusers | Superior Concrete

4x8 Side Feed Flow Diffusers

  • Category:Flow Diffusers
  • Use:Commercial, Residential
  • Class:H-10
  • Type:Concrete
  • Weight:2,225 lbs
  • Capacity:140 gal
  • Interior Dimensions:3'-4 3/4" x 7'-4 3/4" x 9"
  • Exterior Dimensions:4' x 8 x 1'-1"
  • Invert Out:6.5"
  • Invert In:6.5"
Datasheets
4x8 Sidefeed Chamber
5 Outlet D-Box | Superior Concrete

5 Outlet D-Box

  • Category:D-Boxes
  • Use:Residential, Sanitary
  • Class:Pedestrian
  • Type:Distribution
  • Weight:Base: 73# / Lid: 27#
  • Interior Dimensions:16.5"Lx7.5"Wx8"H
  • Exterior Dimensions:20"Lx11"Wx11"H
  • Invert Out:3"
  • Invert In:4"
Datasheets
5 Outlet D-Box
8 Outlet D-Box | Superior Concrete

8 Outlet D-Box

  • Category:D-Boxes
  • Use:Commercial, Residential, Sanitary
  • Class:Pedestrian
  • Type:Concrete, Distribution
  • Weight:Base: 95# / Lid: 53#
  • Interior Dimensions:21"Lx11"Wx8"H
  • Exterior Dimensions:24"Lx14.5"Wx11"H
  • Invert Out:2.5"
  • Invert In:4"
Datasheets
8-Outlet D-Box
Enviro-Septic | Superior Concrete

Enviro-Septic

  • Category:Enviro-Septic Products
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Plastic (Enviro)
  • Weight:~23 lbs
  • Capacity:58 gal
  • Exterior Dimensions:12"Dia x 120"
  • Invert In:7"
Datasheets
Enviro-Septic Installation
Infiltrator Quick4 High Capacity | Superior Concrete

Infiltrator Quick4 High Capacity

  • Category:Infiltrator Chambers
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Plastic (Quick4)
  • Weight:15 lbs
  • Capacity:43 gal
  • Exterior Dimensions:34" x 53" x 16"
  • Invert In:11.5"
Datasheets
Quick4 HiCap
Infiltrator Quick4 Standard | Superior Concrete

Infiltrator Quick4 Standard

  • Category:Infiltrator Chambers
  • Use:Commercial, Residential
  • Class:Pedestrian
  • Type:Plastic (Quick4)
  • Weight:12 lbs
  • Capacity:43 gal
  • Exterior Dimensions:34" x 53" x 12"
  • Invert In:8"
Datasheets
Quick4 Standard

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