Collection: Septic & Sewage Tanks

Plastic Septic Tanks from the biggest brands: Norwesco, Den Hartog, Equinox, and GRAF.

Shop our lineup of residential & commercial plastic septic tanks and commercial Fiberglass Septic Tanks.

Click below to view each style of tank, their capacities, part numbers, drawings, sizing, weight, and accessories. Many of these tanks are multi-purpose, also being able to be used for simple liquid holding and pump chambers / lift stations.

Note sure what you need? Call us or fill out this form to consult an expert.

Picture of three green Plastic Septic Tanks next to each other.


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Contractors: Benefit from our individualized pricing. Request a quote through our website or contact your representative.

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Img Capacity (USG) Name SKU Length (in) Width (in) Height (in) Price
50 Gallon Low Profile Rectangular Tank | LP0050-RT 50.0 Gallons 50 Gallon Low Profile Rectangular Tank | LP0050-RT Ace Roto-Mold 50 Gallon Low Profile Rectangular Tank | LP0050-RT LP0050-RT 24 43 15
Regular price $494.51 CAD
Sale price $494.51 CAD Regular price
68 Gallon Low Profile Rectangular Tank | LP0068-RT 68.0 Gallons 68 Gallon Low Profile Rectangular Tank | LP0068-RT Ace Roto-Mold 68 Gallon Low Profile Rectangular Tank | LP0068-RT LP0068-RT 35 48 19
Regular price $454.05 CAD
Sale price $454.05 CAD Regular price
110 Gallon Low Profile Rectangular Tank | LP0110-RT 110.0 Gallons 110 Gallon Low Profile Rectangular Tank | LP0110-RT Ace Roto-Mold 110 Gallon Low Profile Rectangular Tank | LP0110-RT LP0110-RT 35 48 19
Regular price $658.89 CAD
Sale price $658.89 CAD Regular price
200 Gallon Low Profile Rectangular Tank | LP0200-RT 200.0 Gallons 200 Gallon Low Profile Rectangular Tank | LP0200-RT Ace Roto-Mold 200 Gallon Low Profile Rectangular Tank | LP0200-RT LP0200-RT 48 60 19
Regular price $846.00 CAD
Sale price $846.00 CAD Regular price
200 Gallon Spherical Pump Tank (PLUMBED) | 44950-PL 200.0 Gallons 200 Gallon Spherical Pump Tank (PLUMBED) | 44950-PL Norwesco 200 Gallon Spherical Pump Tank (PLUMBED) | 44950-PL 44950-PL 47 47 56
Regular price $1,977.52 CAD
Sale price $1,977.52 CAD Regular price
200 Gallon Spherical Pump Tank | 44950 200.0 Gallons 200 Gallon Spherical Pump Tank | 44950 Norwesco 200 Gallon Spherical Pump Tank | 44950 44950 47 47 56
Regular price $960.23 CAD
Sale price $960.23 CAD Regular price
300 Gallon Underground Spherical Pump Septic Pump Tank (BLK) | 44946 300.0 Gallons 300 Gallon Underground Spherical Pump Septic Pump Tank (BLK) | 44946 Norwesco 300 Gallon Underground Spherical Pump Septic Pump Tank (BLK) | 44946 44946 54 54 51
Regular price $1,393.95 CAD
Sale price $1,393.95 CAD Regular price
300 Gallon Spherical Pump Tank (with Shoulders) | 41319 300.0 Gallons 300 Gallon Spherical Pump Tank (with Shoulders) | 41319 Norwesco 300 Gallon Spherical Pump Tank (with Shoulders) | 41319 41319 54 54 54
Regular price $1,301.85 CAD
Sale price $1,301.85 CAD Regular price
300 Gallon Spherical Pump Tank (PLUMBED) | 41319-PL 300.0 Gallons 300 Gallon Spherical Pump Tank (PLUMBED) | 41319-PL Norwesco 300 Gallon Spherical Pump Tank (PLUMBED) | 41319-PL 41319-PL 54 54 54
Regular price $1,500.25 CAD
Sale price $1,500.25 CAD Regular price
300 Gallon Low Profile Tank | 45317 300.0 Gallons 300 Gallon Low Profile Tank | 45317 Norwesco 300 Gallon Low Profile Tank | 45317 45317 95 56 16
Regular price $932.26 CAD
Sale price $932.26 CAD Regular price
300 Gallon Low Profile Holding Tank | LP0300-HT 300.0 Gallons 300 Gallon Low Profile Holding Tank | LP0300-HT Ace Roto-Mold 300 Gallon Low Profile Holding Tank | LP0300-HT LP0300-HT 95 56 16
Regular price $1,189.50 CAD
Sale price $1,189.50 CAD Regular price
300 Gallon Low Profile Rectangular Tank | LP0300-RT 300.0 Gallons 300 Gallon Low Profile Rectangular Tank | LP0300-RT Ace Roto-Mold 300 Gallon Low Profile Rectangular Tank | LP0300-RT LP0300-RT 48 80 21
Regular price $1,315.83 CAD
Sale price $1,315.83 CAD Regular price
365 Gallon Low-Profile Water Tank | E305-LP 365.0 Gallons 365 Gallon Low-Profile Water Tank | E305-LP Equinox 365 Gallon Low-Profile Water Tank | E305-LP E305-LP 73 59 25
Regular price $1,233.65 CAD
Sale price $1,233.65 CAD Regular price
400 Gallon Platin Flat Tank 1500L | 390000 400.0 Gallons 400 Gallon Platin Flat Tank 1500L | 390000 GRAF 400 Gallon Platin Flat Tank 1500L | 390000 390000 83 50 27
Regular price $1,782.17 CAD
Sale price $1,782.17 CAD Regular price
500 Gallon Spherical Pump Tank (with Shoulders) | 40785 500.0 Gallons 500 Gallon Spherical Pump Tank (with Shoulders) | 40785 Norwesco 500 Gallon Spherical Pump Tank (with Shoulders) | 40785 40785 64 64 67
Regular price $1,705.43 CAD
Sale price $1,705.43 CAD Regular price
500 Gallon Plastic One Compartment Septic Tank (Non-Plumbed) | 41320 500.0 Gallons 500 Gallon Plastic One Compartment Septic Tank (Non-Plumbed) | 41320 Norwesco 500 Gallon Plastic One Compartment Septic Tank (Non-Plumbed) | 41320 41320 101 51 42
Regular price $1,954.91 CAD
Sale price $1,954.91 CAD Regular price
500 Gallon Plastic One Compartment Septic Tank (Plumbed) | 41320-PL 500.0 Gallons 500 Gallon Plastic One Compartment Septic Tank (Plumbed) | 41320-PL Norwesco 500 Gallon Plastic One Compartment Septic Tank (Plumbed) | 41320-PL 41320-PL 101 51 47
Regular price $2,170.00 CAD
Sale price $2,170.00 CAD Regular price
500 Gallon Spherical Pump Tank (PLUMBED) | 40785-PL 500.0 Gallons 500 Gallon Spherical Pump Tank (PLUMBED) | 40785-PL Norwesco 500 Gallon Spherical Pump Tank (PLUMBED) | 40785-PL 40785-PL 63 63 64
Regular price $1,977.52 CAD
Sale price $1,977.52 CAD Regular price
600 Gallon Low Profile Tank | 43149 600.0 Gallons 600 Gallon Low Profile Tank | 43149 Norwesco 600 Gallon Low Profile Tank | 43149 43149 72 96 29
Regular price $1,559.99 CAD
Sale price $1,559.99 CAD Regular price
600 Gallon Low Profile Water Tank | G500-LP 600.0 Gallons 600 Gallon Low Profile Water Tank | G500-LP Equinox 600 Gallon Low Profile Water Tank | G500-LP G500-LP 88 80 23
Regular price $1,996.75 CAD
Sale price $1,996.75 CAD Regular price
Carat S Underground Tank 2700L (700 USG) with Sealing Set | 372024 700.0 Gallons Carat S Underground Tank 2700L (700 USG) with Sealing Set | 372024 GRAF Carat S Underground Tank 2700L (700 USG) with Sealing Set | 372024 372024 82 62 80
Regular price $1,715.06 CAD
Sale price $1,715.06 CAD Regular price
790 Gallon Platin Flat Tank 3000L | 390001 790.0 Gallons 790 Gallon Platin Flat Tank 3000L | 390001 GRAF 790 Gallon Platin Flat Tank 3000L | 390001 390001 96 82 29
Regular price $3,565.80 CAD
Sale price $3,565.80 CAD Regular price
Carat S Underground Tank 3750L (1000 USG) with Sealing Set | 372025 1000.0 Gallons Carat S Underground Tank 3750L (1000 USG) with Sealing Set | 372025 GRAF Carat S Underground Tank 3750L (1000 USG) with Sealing Set | 372025 372025 85 65 85
Regular price $1,904.81 CAD
Sale price $1,904.81 CAD Regular price
1000 Gallon Low Profile Plastic Two Compartment Septic Tank | 43517 1000.0 Gallons 1000 Gallon Low Profile Plastic Two Compartment Septic Tank | 43517 Norwesco 1000 Gallon Low Profile Plastic Two Compartment Septic Tank | 43517 43517 127 60 51
Regular price $2,905.79 CAD
Sale price $2,905.79 CAD Regular price
1000 Gallon One Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified | 42405 1000.0 Gallons 1000 Gallon One Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified | 42405 Norwesco 1000 Gallon One Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified | 42405 42405 127 60 51
Regular price $2,734.68 CAD
Sale price $2,734.68 CAD Regular price
1000 Gallon Low Profile Aboveground Holding Tank | 45735 1000.0 Gallons 1000 Gallon Low Profile Aboveground Holding Tank | 45735 Norwesco 1000 Gallon Low Profile Aboveground Holding Tank | 45735 45735 134 90 21
Regular price $5,159.17 CAD
Sale price $5,159.17 CAD Regular price
1200 Gallon Low Profile Aboveground Holding Tank | G1000-LP 1200.0 Gallons 1200 Gallon Low Profile Aboveground Holding Tank | G1000-LP Equinox 1200 Gallon Low Profile Aboveground Holding Tank | G1000-LP G1000-LP 152 88 23
Regular price $3,164.60 CAD
Sale price $3,164.60 CAD Regular price
Carat S Underground Tank 4800L (1250 USG) with Sealing Set | 372026 1250.0 Gallons Carat S Underground Tank 4800L (1250 USG) with Sealing Set | 372026 GRAF Carat S Underground Tank 4800L (1250 USG) with Sealing Set | 372026 372026 90 78 72
Regular price $2,932.48 CAD
Sale price $2,932.48 CAD Regular price
1250 Gallon Low Profile Water Tank | 42890 1250.0 Gallons 1250 Gallon Low Profile Water Tank | 42890 Norwesco 1250 Gallon Low Profile Water Tank | 42890 42890 131 84 36
Regular price $2,734.25 CAD
Sale price $2,734.25 CAD Regular price
1250 Gallon Plastic Two Compartment Septic Tank | 43503 1250.0 Gallons 1250 Gallon Plastic Two Compartment Septic Tank | 43503 Norwesco 1250 Gallon Plastic Two Compartment Septic Tank | 43503 43503 157 60 51
Regular price $3,667.33 CAD
Sale price $3,667.33 CAD Regular price
1320 Gallon Platin Flat Tank 5000L | 390002 1320.0 Gallons 1320 Gallon Platin Flat Tank 5000L | 390002 GRAF 1320 Gallon Platin Flat Tank 5000L | 390002 390002 114 91 50
Regular price $4,979.04 CAD
Sale price $4,979.04 CAD Regular price
1500 Gallon Low Profile Plastic Two Compartment Septic Tank | 43504 1500.0 Gallons 1500 Gallon Low Profile Plastic Two Compartment Septic Tank | 43504 Norwesco 1500 Gallon Low Profile Plastic Two Compartment Septic Tank | 43504 43504 157 69 51
Regular price $4,311.62 CAD
Sale price $4,311.62 CAD Regular price


Collection: Septic & Sewage Tanks

Plastic Septic Tanks from the biggest brands: Norwesco, Den Hartog, Equinox, and GRAF.

Shop our lineup of residential & commercial plastic septic tanks and commercial Fiberglass Septic Tanks.

Click below to view each style of tank, their capacities, part numbers, drawings, sizing, weight, and accessories. Many of these tanks are multi-purpose, also being able to be used for simple liquid holding and pump chambers / lift stations.

Note sure what you need? Call us or fill out this form to consult an expert.

Septic and sewage tanks play a crucial role in efficient on-site wastewater management, offering a reliable solution for homes and facilities without access to municipal sewer lines. These systems handle household wastewater from bathrooms, kitchens, and laundry rooms, providing essential treatment and disposal processes that protect both public health and the environment. Here’s a closer look at how septic tanks work, the types available, and maintenance tips to ensure long-lasting performance.

Septic Tank Purpose and Operation

Septic tanks collect wastewater from all household drains, separating solid waste and scum from liquid effluent. Inside the tank, heavier solid waste sinks to the bottom, forming a layer known as sludge, while oils and grease float to the top as scum. Bacteria in the tank partially break down the waste, reducing sludge volume. The remaining liquid effluent is then directed to a drain field, where it’s naturally filtered as it seeps into the soil, removing contaminants before they reach groundwater sources.

Key Benefits of Septic and Sewage Tanks

Septic tanks offer several benefits, including:

  • Cost Savings: Compared to monthly sewer fees, septic systems represent a cost-effective solution, with long-term savings if maintained properly.
  • Environmental Protection: By safely processing household wastewater, septic systems help protect groundwater and local ecosystems from contamination.
  • Adaptability to Rural Areas: Septic tanks are highly suitable for rural and remote areas, providing a self-contained wastewater solution independent of city sewer infrastructure.

Proper Maintenance for Long-Lasting Septic Systems

Routine maintenance is essential to prolong the life of a septic tank and ensure optimal performance. Here’s what regular upkeep involves:

  • Pumping: Septic tanks should be pumped every 3–5 years, depending on the tank size and household usage, to prevent sludge from building up and causing blockages.
  • Inspection: Regular inspections help identify potential issues, such as leaks or drainage problems, before they escalate.
  • Responsible Waste Disposal: Avoid flushing items like wipes, grease, or chemicals down the drain, as they can disrupt bacterial activity and lead to clogs.

Environmental and Health Benefits

Properly functioning septic systems help protect public health by preventing untreated wastewater from contaminating groundwater, rivers, and lakes. This protection is crucial in areas where drinking water comes from private wells, as groundwater contamination poses serious health risks.

By choosing the right septic tank type, practicing regular maintenance, and following responsible waste disposal habits, homeowners can enjoy a durable and efficient wastewater treatment solution that minimizes environmental impact. Investing in a quality septic system not only offers peace of mind but also supports a healthier ecosystem.