1250/350 Gallon Precast Concrete Septic Tanks

Great customer service, knowledgeable and honest. Thank you.
The best precast products around
Always willing to work with you. Good products at a fair price.
Delivery driver for the septic tank was awesome!!
Good business. Great service. Very prompt on delivery and a well-made product. Thanks
Great service fast delivery
Great family run and operated business. Helpful with questions and the delivery, product and service is the best in the state.
Great service!
They consistently deliver quality products on time. I use them every time I install a septic system, Great Job!
Very nice people.
Helpful , locally owned , friendly. I had a great experience with them.
I was looking for a new Presby septic system and I found Andrew J Foss. This company is great, awesome customer service, honest people, and really helpful. Thank you Andrew.
I have been a customer of AJ Foss for 18 years, they go out of there way to make my jobs successful. They are always prompt and courteous, I will continue to use them in the future
Andrew J Foss has everything I need as an excavation contractor. Their service is prompt and their prices are very competitive.
I called them to buy a septic tank and distribution box and they were very helpful and reasonably priced. I would buy from them again!!!!!!
I have had the opportunity to cross paths with AJ Foss many times over the past 10 years, and I have been consistently impressed with the quality of this organization. The number of contractors that trust AJ Foss for their precast concrete needs tells the story. Contractors don't want to insecurity, and the trust they put in AJ Foss speaks volumns. A quality family-run operation that has served southern NH for decades. If you are a contractor and you are NOT using AJ Foss, you owe it to yourself to check them out.

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    New HampshireVermontMaineMassachusetts


    1250/350 Gallon Concrete Septic Tank Overview

    Our 1250/350 gallon septic tank has two compartment areas for this popular mid-seam style concrete septic tank. It is designed to hold 1600 gallons of total liquid.

    Plumbers can run pipes from home drains to either one of this tank’s side or center inlets. The same plumbing option for pipes connection is available on the tank’s outlet, extending to the leach field from its side or out its middle outlet.

    Polylok IV closed end plumbing boots are used for the tank’s penetrations, giving a flexible, watertight connection to the pipe area entering and leaving the precast structure.

    Home owners and plumbers can be confident that our A.J. Foss team has manufactured this tank system to meet all best-practice requirements of ASTM C 1227 & NPCA.

    Any job that requires home waste water system installation services for a residence with up to four bedrooms can benefit from a quality 1250/350 gallon precast concrete septic tanks.  Our team at A.J. Foss in Farmington, NH services commercial partners and residential clients throughout New England with outstanding service and quality precast products.


    • 1600 Gallon tank used for up to 4 bedroom systems where a pump chamber is needed to send the effluent to the leach field area
    • Can also be used for up to 4 bedroom systems
    • Two compartment areas help to separate the solids before the effluent leaves the tank
    • Is delivered pre-assembled for an easier job of installation
    • Most common two compartment tank used in the NH area

    * Details shown are NH-specific; for details of other states’ specifications

    You may also be interested in these popular precast concrete septic tanks.

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