1250/500 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


    1250/500 Gallon Precast Concrete Septic Tank Overview

    This two-compartment area, mid-seam style concrete septic tank is designed for 1750 gallons of liquid. It offers plumbers the ability to run pipes from home drains to either the side or center inlet of the tank.

    The outlet area of this style of septic tank has the same available option. A plumber can run pipes out to a leach field from the tank’s side or middle outlet.

    Polylok IV closed end plumbing boots are used for the tank’s penetrations. This provides a flexible, water tight connection to pipes as they enter and exit the precast structure.

    This tank is appropriate for home septic tank installation jobs designed to support up to 6 bedrooms.  Plumbers, septic designers, and home owners can rest assured that our A.J. Foss team manufactures all precast tanks to meet the best-practice requirements of ASTM C 1227 & NPCA.


    • 1750 Gallon tank can service up to 4 bedroom systems where a larger pump chamber is needed to send waste water effluent to the leach field
    • Can also be used for up to 6 bedroom systems
    • Having two compartment areas helps separate the solids before the effluent leaves the tank
    • Is delivered pre-assembled for ease of installation service

    * 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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