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Pre-Plumbed Septic Tanks

Pre-Plumbed Septic Tanks are plastic septic tanks that have already been fitted with adapters and tees. These plumbed septic tanks are shipped ready to install. View our full catalog of underground septic tanks if you don't mind plumbing the tank yourself. A full list of state approved septic tanks is also available.
Tank / Capacity Length Width Height Size Compartments Part# From Price
300 Gallon Septic Pump Tank 48.5" 48.5" 53" 48.5" L
48.5" W
53" H
1 ST11S AR, CA, NE, WV $ 510
500 Gallon Septic Pump Tank 60" 60" 63" 60" L
60" W
63" H
1 ST21S AR, CA, NE, WV $ 590
500 Gallon Septic Tank 88" 48" 43" 88" L
48" W
43" H
1 ST21L AR, CA, NE, WV $ 617
750 Gallon Septic Tank 70" 60" 60" 70" L
60" W
60" H
1 AST-0750-1 IA $ 750
750 Gallon Septic Tank 96" 52" 62" 96" L
52" W
62" H
1 41712 MN, OH $ 950
750 Gallon Septic Tank 96" 48" 63" 96" L
48" W
63" H
1 41814 NY $ 950
1000 Gallon Septic Tank 101" 60" 60" 101" L
60" W
60" H
1 AST-1000-1 IA $ 1,100
1000 Gallon Septic Tank 101" 60" 60" 101" L
60" W
60" H
2 AST-1000-2 IA $ 1,200
1000 Gallon Septic Tank 101" 52" 71" 101" L
52" W
71" H
1 44622 MN, OH $ 960
1000 Gallon Septic Tank 102" 60" 63" 102" L
60" W
63" H
1 41718 GA, MN, MS, NY, OH, OK, UT, WA $ 990
1000 Gallon Septic Tank 102" 60" 63" 102" L
60" W
63" H
2 41720 GA, MN, MS, NY, OH, OK, UT, WA $ 1,100
1000 Gallon Septic Tank 102" 60" 63" 102" L
60" W
63" H
2 41721 CA $ 1,100
1250 Gallon Septic Tank 118" 58" 72" 118" L
58" W
72" H
1 AST-1250-1 IA $ 1,400
1250 Gallon Septic Tank 118" 58" 72" 118" L
58" W
72" H
2 AST-1250-2 IA $ 1,400
1250 Gallon Septic Tank 116" 55" 70" 116" L
55" W
70" H
1 41741 MN, NY, OH, OK, UT, WA $ 1,200
1250 Gallon Septic Tank 116" 55" 70" 116" L
55" W
70" H
2 41743 MN, NY, OH, OK, UT, WA $ 1,300
1250 Gallon Septic Tank 116" 55" 70" 116" L
55" W
70" H
2 41744 CA $ 1,300
1500 Gallon Septic Tank 137" 58" 72" 137" L
58" W
72" H
1 AST-1500-1 IA $ 1,600
1500 Gallon Septic Tank 137" 58" 72" 137" L
58" W
72" H
2 AST-1500-2 IA $ 1,800
1500 Gallon Septic Tank 135" 55" 70" 135" L
55" W
70" H
1 41758 GA, MN, NY, OH, OK, UT, WA $ 1,500
1500 Gallon Septic Tank 135" 55" 70" 135" L
55" W
70" H
2 41760 GA, MN, NY, OH, OK, UT, WA $ 1,600
1500 Gallon Septic Tank 135" 55" 70" 135" L
55" W
70" H
2 41761 CA $ 1,600
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