8′ Diameter

Name: 8′ Diameter
Brand: FRP MFG
Price: 199.90 USD
Availability: InStock
Rating: 4.6 (27 reviews)

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Lightweight – a fiberglass tank is lightweight, thus easier to ship and easier to install than tanks made of other material.
Corrosion Resistant – will not corrode or break down like other products utilized to hold liquids. This eliminates the possibility of leakage due to either internal or external rusting.
Water tanks are approved by NSF Standard 61 (potable water tanks).
Wastewater tanks are approved by CSA Standard B66.

Bonded One Piece (L Series):

Water & Wastewater (one piece)
Model	Capacity (Imp. Gal.)	Capacity (US Gal.)	Dimensions	Weight
AG1500-L	1500	1800	8’6″D x 5’H	1050
AG2000-L	2000	2400	8’6″D x 6’6″H	1235
AG2500-L	2500	3000	8’6″D x 8’H	1375
AG3000-L	3000	3600	8’6″D x 10’H	1500
AG3500-L	3500	4200	8’6″D x 11’6″H	1700
AG5000-L	5000	6000	8’6″D x 16’H	2250

Product Specification

Water & Wastewater (one piece)
Model	Capacity (Imp. Gal.)	Capacity (US Gal.)	Dimensions	Weight
AG1500-L	1500	1800	8’6″D x 5’H	1050
AG2000-L	2000	2400	8’6″D x 6’6″H	1235
AG2500-L	2500	3000	8’6″D x 8’H	1375
AG3000-L	3000	3600	8’6″D x 10’H	1500
AG3500-L	3500	4200	8’6″D x 11’6″H	1700
AG5000-L	5000	6000	8’6″D x 16’H	2250

Drawings

8’ Diameter Tanks

Frequently Asked Questions

Are FRP septic tanks approved for use in Washington State?

Yes. Every FRP septic tank we manufacture meets or exceeds CSA Standard B66, a key compliance benchmark for wastewater containment. These tanks are suitable for use across Washington in residential, industrial, and remote applications, where code-compliant, environmentally safe septic solutions are required.

What sizes do your fiberglass septic tanks come in?

We offer a variety of sizes to accommodate different needs – from small-capacity tanks for cabins and tiny homes, to larger systems for full-time residences, work camps, and commercial setups. Our team can help you select the right size based on your expected usage and site conditions.

How long do fiberglass septic tanks last?

With proper installation and maintenance, fiberglass septic tanks can last 40 years or more. Their corrosion resistance and seamless construction help prevent leaks and structural failures, even when buried underground for decades. That’s why many Washington property owners choose fiberglass over concrete or steel.

How does a fiberglass septic tank handle Washington’s wet and coastal regions?

Washington’s coastal zones, like those around Seattle or Bellingham, deal with high groundwater and fluctuating soil conditions. Fiberglass septic tanks are non-corrosive and watertight, making them a great fit for these environments. Their lightweight nature also allows for easier placement without the need for heavy equipment, even in challenging terrain.