This 1,250-gallon underground septic tank is built for below-grade residential and light commercial wastewater management, giving installers and property owners a reliable single-compartment solution sized to handle substantial liquid volume. At 55'' W x 116'' D x 70'' H, the tank fits standard excavation footprints while providing meaningful capacity for properties that require an on-site septic system.

Liquid access is handled through one inlet and one outlet, each fitted with a 4'' gasketed PVC tee assembly, along with two 20'' gasketed manways that allow for inspection and service access without major excavation. The gasket-and-tee plumbing design supports a secure, leak-resistant connection at both the inlet and outlet points, reducing the risk of ground contamination and simplifying future maintenance.

This tank is intended for underground installation and arrives not pre-plumbed, allowing the installer to connect site-specific piping to the gasketed tee assemblies during setup. The single-compartment configuration suits standard septic applications where a straightforward settling and effluent separation process is required. With a shipping weight of 435 lbs., site preparation and equipment for unloading should be planned in advance. The tank ships from multiple distribution points across the country, which can help reduce transit time depending on the installation location.

Key Features:

• 1,250-Gallon Capacity: Provides substantial liquid volume for underground septic applications on residential or light commercial properties.
• Underground Installation: Designed specifically for below-grade placement, keeping the system out of sight and protected from surface conditions.
• Gasketed Inlet and Outlet: Both the inlet and outlet use 4'' gasketed PVC tee assemblies, supporting secure, leak-resistant connections to site plumbing.
• Dual 20'' Gasketed Manways: Two access lids allow for inspection and routine maintenance without requiring full excavation of the tank.
• Single-Compartment Design: Straightforward one-chamber configuration suited to standard septic settling and effluent separation workflows.
• Not Pre-Plumbed: Arrives ready for field connection, giving installers flexibility to route inlet and outlet piping to match site-specific conditions.

This 1,250-gallon underground septic tank is a practical choice for installers and property owners who need a dependable, below-grade wastewater storage solution with accessible service points and a proven gasketed plumbing configuration. Review local codes and site conditions with a qualified installer before purchase to confirm this tank meets all applicable requirements for your application.