This 1,250-gallon underground septic tank is built for residential and light commercial wastewater management where a reliable, below-grade containment solution is needed. Designed for underground installation, it handles the demands of on-site septic systems by providing a single-compartment holding chamber with dedicated inlet and outlet access points. Two 20'' gasketed manways allow for inspection and service access without excavating the full tank footprint, making routine maintenance more manageable over the life of the installation.

The tank ships at 355 lbs. and measures 55'' W x 116'' D x 70'' H, giving installers a clear picture of the excavation and placement requirements before the job begins. Plumbing connections use a gasket and tee system, with one 4'' gasketed PVC tee assembly at the inlet and a matching 4'' gasketed PVC tee assembly at the outlet. The tank is not preplumbed, so connections are made on-site to suit the specific installation layout.

This tank is suited for new construction or replacement projects where an underground single-compartment septic tank is specified. The gasketed manway lids and tee assemblies support a secure, sealed installation, and the tank's dimensions should be confirmed against the excavation plan and local code requirements before ordering. Because this is a large, freight-shipped item, buyers should verify site access and equipment availability prior to delivery.

Key Features:

• 1,250-Gallon Capacity: Provides substantial underground wastewater holding volume suited to residential and light commercial septic applications.
• Underground Installation: Engineered specifically for below-grade placement, keeping the system out of sight and protected from surface conditions.
• Two 20'' Gasketed Manways: Dual access lids allow inspection and servicing of the tank interior without full excavation, supporting long-term maintenance.
• 4'' Gasketed PVC Tee Assemblies: Both the inlet and outlet use gasketed PVC tee connections for a secure, leak-resistant fit at each plumbing junction.
• Single Compartment Design: Straightforward single-chamber construction simplifies installation and suits standard septic system configurations.
• Not Preplumbed: Connections are completed on-site, giving installers the flexibility to match the tank to the specific plumbing layout of the project.

This 1,250-gallon underground septic tank is a practical choice for on-site wastewater systems that require a durable, below-grade holding solution with accessible service points. Confirm local code compliance, excavation dimensions, and site access requirements before placing your order. Contact us for current lead time and freight details.