When a large-scale water reserve needs to be positioned inside an existing structure, getting a full-size tank through a standard doorway is the first obstacle. This 500 gallon polyethylene water storage tank is engineered with a 29'' width that allows it to pass through a standard doorway opening, so households, farms, and facilities can establish a substantial indoor water reserve without costly construction or exterior-only placement.

Built from UV-stabilized polyethylene for above-ground use, the tank holds 500 gallons and includes built-in gallon indicators so water levels are easy to monitor at a glance. The opaque, non-translucent construction helps protect stored water from light exposure, and the included fittings give you multiple connection points right out of the box.

This tank is designed for above-ground indoor or sheltered installation where a large water reserve is needed but access is limited to standard doorway openings. The 29'' W x 69'' D x 78'' H footprint fits within utility rooms, basements, and storage areas that would otherwise be inaccessible to wider tanks. With 2 inlets, 2 outlets, and a manway lid, the tank supports straightforward fill, draw, and maintenance access without requiring additional fittings for basic operation. Additional fitting configurations are available; contact us for details.

Key Features:

• Doorway-Friendly Width: At 29'' wide, this tank is sized to move through a standard doorway, making indoor placement practical without structural modifications.
• 500 Gallon Capacity: Stores a substantial water reserve in a single above-ground tank, suitable for emergency preparedness, agricultural, or facility use.
• Polyethylene Construction: Molded from polyethylene for a durable, above-ground water storage application.
• UV Stabilized: UV stabilization helps protect the tank material during above-ground use, including partially exposed or transitional indoor/outdoor environments.
• Gallon Indicators: Built-in gallon indicators let you check water levels quickly without removing the lid or using external gauges.
• Ready-to-Connect Fittings: Includes 2 inlets, 2 outlets, and 1 manway lid so the tank is ready for basic plumbing connections; additional fitting options are available upon request.

This 500 gallon doorway water storage tank is a practical solution for anyone who needs a large indoor water reserve but is working within the constraints of standard building access. The combination of a narrow profile, generous capacity, and included fittings makes it a straightforward choice for emergency water storage, rural water supply, and similar above-ground applications.