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Round Poly Tanks

  • $325.40

Call 1-800-557-4689 to place an order or find your local dealer

Our customer service team will help you find your nearest dealer. Dealership and direct sale pricing may vary. If a dealer is not in your area, please ask us for a freight quote to your location. Customer Service Hours: Monday - Friday, 8 am to 5 pm CST

Water Poly Tank Resists Cracking


  • Stock tanks that resist denting or cracking from the effects of weather, accidents or ill-tempered animals. Safe for all livestock; hogs, pigs, cattle, horses.
  • Use it in confinement, field, feedlot or pasture.
  • All parts are uniform in thickness with no thin corners or edges.
  • All corners and edges are rounded and smooth.

Order Online:
3/4" Plug (F100153)
Bulkhead Tank Fitting (S228001)
1" Plug (F156140) for older model 6' Tanks that do not have bulkhead fitting
1.5" Plug (F160996) for older model7.5' & 9' Tanks that do not have bulkhead fitting

UV Protection Made of durable Polyethylene Made of Recycled Material

Product# Weight
6' x 2' deep
335 gallons
57 lbs.
7.5' x 2' deep
530 gallons
100 lbs.
9' x 28" deep
950 gallons
140 lbs.

We try our best to ship orders in the timeliest manner possible. Each product may have a different level of manufacturing demand and timeframe for shipment.

Shipping Rates

We offer calculated shipping rates during the checkout process. USPS, UPS & FedEx services are available if the product ordered qualifies for those options.

Order Processing

Business Days: Monday-Thursday.
Holidays, Fridays, Saturdays and Sundays are not included in processing days.

If you have any questions or concerns about your order's status, please email us at to discuss.

International Orders

Customers are responsible for any brokerage fees incurred on shipping. Sioux Steel Company cannot calculate these fees.


Products on this website do not qualify for returns. We understand this may cause you concern....

We are here to help!

Our customer service team is available Monday-Friday, 8am to 5pm CST to discuss the parts in question PRIOR to placing your order.

Call us toll free at 1-800-557-4689 to talk and confirm your parts needed.

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Dealer Locator
We distribute products through local dealerships in your area. Prices and product availability may vary between dealerships.

Verdant Garden Beds:
Galvanized steel raised garden beds can be found on Amazon.

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Ask a Question

NOTE: All product specifications are subject to change or improvement without notice. We reserve the right to change product pricing at any time without further notice. Pricing may differ at the time of purchase.

Contact Sioux Steel by emailing or by calling our customer service specialists at 1-800-557-4689 for additional information.

SIOUX STEEL COMPANY FOUNDATION: 2% of the total sales dollars from this website are donated to the Leukemia and Lymphoma Society. Beating cancer is in our blood.

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Ask a Question
  • looking for 2 each 9 feet round sioux poly stock tanks. Is there a dealer near me in Salinas, CA 93907?

    Thank you for reaching out! I checked our Dealer Locator and I'm not seeing a dealer within 60 miles of your location. If you'd like to find out about dealers in a larger radius of your location, or shipping options, our Territory Manager for CA is Tyler Madison and he would be able to assist you. He can be reached at or 605-799-7602. Thank you.

  • I’m looking for a 9’ round poly tank. I’m in Atlanta 30327. Where are your closest dealers?

    Thank you for reaching out! According to our Dealer Locator, here is a Livestock dealer that is within 60 miles of your location:
    186 W Athens St.
    Winder, GA 30680
    770-867-3925 (Local)

  • Can a 9ft poly tank be shipped to central IL

    Thank you for reaching out! Yes, the poly tanks can be shipped to central IL. Due to the cost of shipping such a large object, we do typically recommend checking with dealers in your area. They likely offer the product at a better price than buying direct. 

    Our Dealer Locator can be found here -

    If you would like a quote on getting the poly tank shipped to you, here is a way to reach out directly to get us the mailing address that will be used -

    Thank you.

  • Hello. I am looking for a 9ft round ploy tank. My zip is 68349. Where is the closest dealer please

    Thank you for reaching out! According to our Dealer Locator, these are the livestock dealers that are within 60 miles of your location:


  • Do you ship poly tanks to South Carolina

    Thank you for reaching out! Yes, we do offer shipping of poly tanks to South Carolina. I'd be happy to connect you directly to a CSR to get a shipping quote created. You are welcome to email us at with your email address or phone number. Otherwise, you are welcome to call our CSR team at 1-800-557-4689 or 1-605-336-170 to get a shipping quote.

  • Is this UV and UB protected material?

    Thank you for reaching out! All of our poly products are made with a UV resistant resin. They resist denting or cracking from the effects of weather, accidents or ill-tempered animals

  • How thick in millimeters are the walls of the poly round stock tanks?

    Thank you for reaching out and asking! Below is the information for the different sizes of poly round stock tanks:

    For the 6ft Dia Round Ploy Tank: 4.3 mm

    For the 7.5ft Dia Round Ploy Tank: 5 mm

    For the 9ft Dia Round Ploy Tank: 5 mm

  • I’m looking to buy a 9ft by 28 Sioux steel poly stock tank. My zip code is 13367. Is there a dealer near me or can it be shipped?

    Greetings! We would love to help... your nearest local Sioux Steel livestock dealer is:

    CATO, NY 13033

  • What is the actual size of your 9 ft poly tank. Diameter and depth.

    Thank you for reaching out! the 9ft poly tank is 9' wide x 28" deep.

  • how much would a 9 ft round sioux- poly stock tank cost to ship to harrisburg pa?

    Thank you for your question!
    Please call our Livestock Customer Service toll free at 1-877-782-3073 to assist you with finding your nearest dealership or quoting you freight to your location.

  • I own one of your pools, in turquoise and have enjoyed it for years. I noticed recently it has a slight crack along the rim. Is there anything that will repair it, before it gets any worse?

    Thank you for reaching out! I checked with our livestock sales team and they recommended trying Flex Seal for any creack that appear after years of use. They also mentioned that they have repaired them with clear silicone as well… the RV type silicone stops the crack from getting any larger as well is it tends to remain flexible which prevents further damage on down the line.

    Thank you.


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