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Septic Tanks

Protank Plastic Septic Tanks

Underground septic tanks and above ground septic tanks are available for residential, agricultural, commercial, and job site applications. Underground septic tanks are available in 200 gallon to 5025 gallon capacities. Above ground septic tanks are available from 250 gallons to 440 gallons. All septic tanks are rotationally molded of high density polyethylene (HDPE) resin, providing a seamless and durable septic tank that is resistant to corrosion, rust, impact, and punctures. Polyethylene septic tanks are resistant to the chemicals or gases that may be found in soil or sewage. These tanks are manufactured with UV inhibitors to prevent sunlight degradation for outdoor applications. Plastic septic tanks have characteristic resistance to fluctuating weather and temperatures, making them tolerant to environmental changes. These tanks are designated for waste water, sewage, and black water only. They are not FDA certified for potable water use. Septic tanks are the core unit of complete septic systems and the features of HDPE septic tanks provide long tank service lives. These septic tanks are state approved for homes, construction sites, trailers, cabins, RV parks, and for commercial and residential use in areas without municipal sewer lines.

Underground septic tanks are also known as cesspits, cesspool tanks, below ground tanks, sewer tanks, sewage tanks, waste holding tanks, and blackwater tanks. Underground septic tanks are designed for underground burial or as a component of man-made septic system mounds. Protank’s septic tanks are manufactured to be durable and to allow quick installation. HDPE septic tanks are more lightweight and install easier than concrete and fiberglass tanks. They are available in unplumbed or in pre-plumbed installation ready options. Standard or heavy duty ribbed models are provided. They are offered as single compartment or multiple compartment tanks. Single compartment pump tanks are also available and in capacities from 200 gallons to 500 gallons. Inlets and outlets can be added to pump tanks on request. Septic tanks come fitted with lids. Manway extensions and risers can be added to all Protank’s underground septic tanks.

Above ground septic tanks are portable black water tanks also known as waste tanks, septic holding tanks, trailer septic tanks, job site waste tanks, shack tanks, camper septic tanks, motorhome septic tanks, and cottage septic tanks. Above ground septic tanks are designed to be freestanding with a low profile, rectangular flat shape for fitting beneath structures. They are also designed to receive various plumbing configurations through rubber couplers and recessed port clamps. Plastic above ground septic tanks are lightweight to allow two-person maneuverability. They are black or grey opaque in color. Pre-installed port options are available.

Protank’s underground and aboveground septic tanks are provided with 3 year manufacturer warranties. Some customization options are available. Connections, openings, lids, inlets, and outlets are examples of custom fabrication options. Contact us for polyethylene septic tank questions, custom fabrication, of for further information.

Name Length Width Height Size Compartments Part
200 Gallon Plastic Septic Pump Tank 47" 47" 56" 47 L
47 W
56 H
1 PUN200
250 Gallon Above Ground Septic Holding Tank 72" 48" 18" 72 L
48 W
18 H
No 250AGS
250 Gallon Above Ground Septic Holding Tank 68" 48" 19" 68 L
48 W
19 H
No 42518
300 Gallon Above Ground Septic Holding Tank 95" 53.5" 16" 95 L
53.5 W
16 H
No 300AGS
300 Gallon Above Ground Septic Holding Tank 95" 56" 16" 95 L
56 W
16 H
No AGA300
300 Gallon Plastic Septic Pump Tank 48.5" 48.5" 53" 48.5 L
48.5 W
53 H
1 PUS300
300 Gallon Plastic Septic Pump Tank 48.5" 48.5" 53" 48.5 L
48.5 W
53 H
1 PUS300
300 Gallon Plastic Septic Pump Tank 54" 54" 56" 54 L
54 W
56 H
1 PUA300
300 Gallon Plastic Septic Pump Tank 54" 54" 54" 54 L
54 W
54 H
1 PUN300
440 Gallon Above Ground Septic Holding Tank 91" 72" 16" 91 L
72 W
16 H
No 440GB
500 Gallon Above Ground Septic Holding Tank 130" 52" 22" 130 L
52 W
22 H
No AGN500
500 Gallon Low Profile Plastic Septic Tank 97" 48" 42" 97 L
48 W
42 H
1 LSN500
500 Gallon Plastic Septic Pump Tank 60" 60" 63" 60 L
60 W
63 H
1 PUS500
500 Gallon Plastic Septic Pump Tank 60" 60" 63" 60 L
60 W
63 H
1 PUS500
500 Gallon Plastic Septic Pump Tank 63" 63" 74" 63 L
63 W
74 H
1 PUA500
500 Gallon Plastic Septic Pump Tank 64" 64" 67" 64 L
64 W
67 H
1 PUN500
500 Gallon Ribbed Plastic Septic Tank 88" 48" 43" 88 L
48 W
43 H
1 SES500
500 Gallon Plastic Septic Tank 101" 51" 47" 101 L
51 W
47 H
1 SEN500-1
750 Gallon Plastic Septic Tank 70" 60" 60" 70 L
60 W
60 H
1 SEA750-1
750 Gallon Plastic Septic Tank 96" 52" 62" 96 L
52 W
62 H
1 SEN750-1
750 Gallon Plastic Septic Tank 96" 48" 63" 96 L
48 W
63 H
1 SEN750-2
750 Gallon Low Profile Plastic Septic Tank 92" 60" 51" 92 L
60 W
51 H
No LSN750
1000 Gallon Plastic Septic Tank 101" 60" 60" 101 L
60 W
60 H
1 SEA1000-1
1000 Gallon Plastic Septic Tank 101" 60" 60" 101 L
60 W
60 H
2 SEA1000-2
1000 Gallon Plastic Septic Tank 101" 52" 71" 101 L
52 W
71 H
1 SEN1000-1
1000 Gallon Underground Holding Tank 101" 52" 71" 101 L
52 W
71 H
No PT-BRNO1000
1000 Gallon Underground Holding Tank 102" 60" 63" 102 L
60 W
63 H
No BRN1000-2
1000 Gallon Low Profile Plastic Septic Tank 127" 60" 51" 127 L
60 W
51 H
No LSN1000
1000 Gallon Plastic Septic Tank 102" 60" 63" 102 L
60 W
63 H
No SEN1000-2
1250 Gallon Plastic Septic Tank 118" 58" 72" 118 L
58 W
72 H
1 SEA1250-1
1250 Gallon Plastic Septic Tank 118" 58" 72" 118 L
58 W
72 H
2 SEA1250-2
1250 Gallon Low Profile Plastic Septic Tank 157" 60" 51" 157 L
60 W
51 H
No LSN1250
1250 Gallon Plastic Septic Tank 116" 55" 70" 116 L
55 W
70 H
No SEN1250-2
1250 Gallon Underground Holding Tank 116" 55" 70" 116 L
55 W
70 H
No BRN1250
1500 Gallon Plastic Septic Tank 137" 58" 72" 137 L
58 W
72 H
1 SEA1500-1
1500 Gallon Plastic Septic Tank 137" 58" 72" 137 L
58 W
72 H
2 SEA1500-2
1500 Gallon Low Profile Plastic Septic Tank 157" 69" 51" 157 L
69 W
51 H
No LSN1500
1500 Gallon Plastic Septic Tank 135" 55" 70" 135 L
55 W
70 H
No SEN1500-2
1500 Gallon Ribbed Plastic Septic Tank 140" 64" 62" 140 L
64 W
62 H
No SES1500
1500 Gallon Underground Holding Tank 135" 55" 70" 135 L
55 W
70 H
No BRN1500
1500 Gallon Pre-Plumbed Ribbed Plastic Septic Tank 140" 64" 62" 140 L
64 W
62 H
No SES1500-P
2000 Gallon Plastic Septic Tank 126" 98" 51" 126 L
98 W
51 H
1 SEN2000
2000 Gallon Plastic Septic Tank 126" 98" 51" 126 L
98 W
51 H
1 SEN2000
2500 Gallon Plastic Septic Tank 159" 99" 51" 159 L
99 W
51 H
1 SEN2500
2600 Gallon Plastic Septic Tank 155" 99" 51" 155 L
99 W
51 H
1 SEN2600
2650 Gallon Plastic Septic Tank 155" 99" 81" 155 L
99 W
81 H
1 SEN2650
3525 Gallon Plastic Septic Tank 211" 102" 51" 211 L
102 W
51 H
1 SEN3525
5025 Gallon Plastic Septic Tank 211" 102" 96" 211 L
102 W
96 H
1 SEN5025