Septic Tanks

These septic tanks deliver superior strength, easier installation, and greater cost efficiency than traditional concrete systems. Constructed from durable HDPE with built-in UV inhibitors, they feature a horizontal flow design for below-ground installation up to 36". A custom-molded nitrile rubber gasket ensures a dependable, watertight seal, while the lid is secured with corrosion-resistant nylon ties, eliminating the need for metal fasteners. Each tank meets wastewater treatment standards and includes a unique serial code for traceability. Models with capacities of 1,000 gallons and larger feature an internal baffle system that slows wastewater flow to improve separation, allowing solids to settle while partially treated liquid exits for further treatment. These larger tanks are available in one- or two-compartment configurations, enhancing natural separation of solids and liquids for efficient household wastewater treatment.

Made of UV-stabilized HDPE
Locking lid with corrosion-resistant nylon ties; Watertight nitrile rubber gasket seal in lid
Designed for below-ground wastewater use
Horizontal flow design for efficient processing
Maximum specific gravity: 1.7
Reference county, state, & federal codes for complete installation details
25560, 25562 & 25564 meet IAPMO/ANSI Z1000-2013 & CSA B66-2016 standards
Height listed is with the lid; see sku page & drawings for details

Item #	Description	Catalog Pg.	Price
Item 25556	300 Gallon Yellow Round Septic Tank with 24" Locking Black Lid - 54" Dia. x 56" Hgt. 772.34/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	772.34/Each Drop Ship
Item 25557	500 Gallon Yellow Round Septic Tank with 24" Locking Black Lid - 63" Dia. x 74" Hgt. 1004.32/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	1004.32/Each Drop Ship
Item 25558	750 Gallon Yellow Single Compartment Loaf Septic Tank with 24" Locking Black Lid - 60" L x 70" W x 60" Hgt. 1341.82/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	1341.82/Each Drop Ship
Item 25559	1000 Gallon Yellow Single Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 96-1/2" L x 59" W x 74" Hgt. 2015.34/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2015.34/Each Drop Ship
Item 25560	1000 Gallon Yellow Double Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 96-1/2" L x 59" W x 74" Hgt. 2455.14/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2455.14/Each Drop Ship
Item 25561	1250 Gallon Yellow Single Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 115" L x 59" W x 74" Hgt. 2193/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2193/Each Drop Ship
Item 25562	1250 Gallon Yellow Double Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 115" L x 59" W x 74" Hgt. 2605.52/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2605.52/Each Drop Ship
Item 25563	1500 Gallon Yellow Single Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 133-1/2" L x 59" W x 74" Hgt. 2632.82/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2632.82/Each Drop Ship
Item 25564	1500 Gallon Yellow Double Compartment Loaf Septic Tank with 2 - 24" Bolt-on Black Lids - 133-1/2" L x 59" W x 74" Hgt. 2855.51/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-312	2855.51/Each Drop Ship

Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.