This 1,500 gallon underground septic tank is built for residential and light commercial wastewater management applications where a reliable, below-grade containment solution is needed. Sized at 55'' W x 135'' D x 70'' H, it provides substantial holding capacity in a single-compartment design that fits standard septic system layouts. Two 20'' gasketed manways give installers and service technicians convenient access for inspection and maintenance without disrupting the surrounding site.

The tank ships at 450 lbs. and is designed for underground installation. Liquid access is provided through one inlet and one outlet, each fitted with a 4'' gasketed PVC tee assembly, along with the two gasketed manway lids. The plumbing type is gasket and tees, and the tank is not preplumbed, allowing contractors to complete connections to suit site-specific requirements.

This tank is well suited for new septic system installations or replacement projects where a proven underground design is required. The single-compartment configuration keeps the installation straightforward, and the gasketed fittings on both the inlet and outlet connections support a secure, leak-resistant seal. Contractors specifying a tank for a standard residential or light commercial system will find the 1,500 gallon capacity and 135'' overall length appropriate for a wide range of lot configurations. Because the tank is not preplumbed, plumbing connections are completed on site to match local code requirements and system design.

Key Features:

• 1,500 Gallon Capacity: Provides substantial underground holding volume suited to residential and light commercial septic system requirements.
• Underground Installation: Designed specifically for below-grade placement, keeping the system out of sight and protected from surface conditions.
• Dual 20'' Gasketed Manways: Two gasketed manway lids allow straightforward access for inspection, pumping, and maintenance without major excavation.
• Gasketed PVC Tee Inlet and Outlet: Both the 4'' inlet and 4'' outlet use gasketed PVC tee assemblies for secure, field-ready connections.
• Single Compartment, Not Preplumbed: The single-compartment layout simplifies installation, and the not-preplumbed configuration lets contractors connect to site-specific plumbing as required.

This 1,500 gallon underground septic tank is a practical choice for contractors and property owners planning a new septic installation or replacing an existing tank. The combination of dual manway access, gasketed tee fittings, and a single-compartment design supports a clean, code-ready installation in a range of residential and light commercial settings.