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20000 Gallon Norwesco Septic Tank

20000 Gallon Septic Tank
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Quick Summary
Part# MPN: 41616 / Store ID: X7612567
Dimensions 665" Length x 101" Width x 107" Height
Liquid Access 4 Manways / Lids
Weight / Ship Class 4000 lbs. / Ship Class 400
Ships From MN
Drawing Norwesco 41616 Drawing
Features four 24" manholes for ease of access
Complies with FDA standards 21 CFR 177.1520 (1) 3.1 and 3.2
Integral columns provide excellent structural strength
Multi-use option for potable, non-potable, & septic applications
Tank does not come with plumbing installed.
This tank manufacturer requires the questionnaire form filled out and sent in prior to purchase acceptance. Please complete the Questionnaire Form below.
Municipal and County code may vary from your state approval. Please make sure you consult with your local sanitation department or plumber on requirements.

Regular Price: $69,386.99

Special Price $57,921.99

17% Off MSRP Guaranteed for 3 days only

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Special Price $57,921.99

Tank does not come with plumbing installed.


Norwesco 20,000 Gallon Septic Tank, part# 41616 is a 1 compartment septic tank. It's can be used for the storage of potable water & wastewater. This plastic septic tank offers a lightweight low cost alternative to old-fashioned concrete septic tanks.

This 20,000 gallon septic tank is constructed with rotationally molded polyethylene resin. It's seamless construction makes it durable and resistant to cracks, chips, and ruptures. The poly tank was made with FDA approved resin that complies with FDA standards 21 CFR 177.1520 (1) 3.1 and 3.2 for waste water storage.

Norwesco backs their septic tanks with a 3 year manufacturer warranty. Additional riser options are available. These plastic septic tanks are available in sizes ranging from 200 to 20,000 gallons.

The National Tank Outlet is ready to help fulfill your liquid transportation needs. Contact our septic tank experts with your questions or customization requirements.
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Size Comparison

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At Scale

Additional Information

Store ID X7612567
Manufacturer Info
Product Part # 41616
Manufacturer Norwesco
Manufacturer Warranty 3 Year Warranty
Technical Drawing Norwesco 41616 Drawing
Brochure Norwesco 41616 Product Data Sheet
Documents Norwesco 41616 Questionnaire
Size Info
Capacity (Gallons) 20000
Dimensions 665" Length x 101" Width x 107" Height
Weight (lbs) 4000
Liquid Accessibility
Liquid Access 4 Manways / Lids
Manway / Lid 1 24" Manway Cover
Resin Features
Color Natural White
Material Polyethylene
FDA Approved Resin Yes (Food Grade, Potable)
Max Temp Allowed 120° F / 48° C
Physical Features
Product Type Septic Tank
Environment Underground
Preplumbed No
Compartments 1
Lifting Lugs Yes
ANSI / NSF 61 Approved Resin Yes
NSF Sticker Availability Minnesota
Shipping Info
Shipping Locations Minnesota
Shipping Zip Codes 55375
Ship Freight Class 400
Liftgate Option No
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