RomoTech 82123925 100 Gallon Water Tank - Horizontal Square, Poly Tank for Non-Flammable Liquids, UV-Resistant Storage with Molded Gallon/Liter Marks, 3/4" NPT Outlet, Made in USA, Black

The RomoTech 82123925 is a 100-gallon horizontal square storage reservoir designed for hauling and holding bulk fluids on work sites, farms, trailers, and utility vehicles. It provides a dedicated liquid supply for tasks like mobile vehicle detailing, pressure washing, field irrigation, camping setups, and emergency water readiness. Built specifically for potable water and non-flammable liquids, this utility tank gives mobile operators and property owners a durable, self-contained fluid station that mounts directly into open vehicle beds or stationary stands.

Its structural build utilizes medium-density polyethylene that is rustproof and UV-stabilized. This composition allows the reservoir to withstand direct sunlight and harsh outdoor elements across changing seasons without fading, cracking, or warping. The body features molded gallon and liter increments along the exterior wall, allowing operators to verify liquid volume quickly without opening the cap or measuring manually. For refilling and routine maintenance, the reservoir includes an oversized 5-1/2-inch lid with a wide 5-inch opening, simplifying hose insertion and tank rinses.

Plumbing and transit hardware are integrated directly into the molded shell. A built-in bulkhead fitting connects to a standard 3/4-inch NPT outlet, allowing rapid hose hookups, siphon lines, or direct feeds to pressure washers and washdown pumps. When transporting heavy liquid loads on the road, molded tie-down channels accept saddle straps, keeping the square reservoir locked in place across truck beds, flatbeds, and utility trailers to reduce shifting during travel.

Buyers should take note of its strict operational boundaries. The poly construction is engineered strictly for non-flammable fluids and cannot be used with fuels, oils, or combustible chemicals. Furthermore, liquid contact temperatures must remain at or below 140 degrees Fahrenheit. The product listing also does not include mounting straps, shut-off valves, or plumbing adapters, so you will need to supply compatible 3/4-inch fittings and secure strapping suited to your specific rig.

Verdict: The RomoTech 82123925 is an ideal choice for contractors, detailers, and outdoor workers who need a heavy-duty, UV-resistant 100-gallon reservoir ready for mobile hauling or static utility storage.

• Capacity: 100 gallons
• Tank Shape: Horizontal square
• Material: UV-stabilized, medium-density poly
• Lid Size: 5-1/2-inch lid with 5-inch opening
• Outlet: Built-in bulkhead fitting with 3/4-inch NPT outlet
• Volume Markings: Molded gallon and liter indicators
• Maximum Contact Temperature: 140 degrees Fahrenheit
• Liquid Compatibility: Potable water and non-flammable liquids
• Country of Origin: Made in USA
• Color: Black

A great fit if you:

• Need a dedicated 100-gallon potable water reservoir that can stay secured in a truck bed or trailer during mobile work.
• Operate a mobile detailing rig or commercial pressure washer that requires a dependable 3/4-inch NPT plumbing hookup on site.
• Manage farm chores, garden irrigation, or remote livestock areas that require regular hauling of non-flammable utility liquids.
• Want a sun-resistant, outdoor-ready water reserve with visible gallon and liter markings for emergency property preparedness.

Consider something else if you:

• Need to haul or store flammable fuels, combustible chemicals, or petroleum products that require specialized hazard containment.
• Plan to transfer heated fluids or chemical washes that exceed the maximum rated contact threshold of 140 degrees Fahrenheit.

Confirm on the listing:

• Measure your truck bed, trailer deck, or storage platform to ensure the horizontal square footprint fits your available floor space.
• Check whether your plumbing lines and pump connections are compatible with the integrated 3/4-inch NPT bulkhead outlet or require adapters.
• Check what mounting equipment you currently own, as saddle straps and mounting brackets are not listed as included accessories.
• Confirm that your vehicle payload capacity can support the weight of a full 100-gallon water tank along with your existing gear.

How to compare your options: Focus on container shape, material density, and port sizing when evaluating liquid reservoirs. A square profile with integrated tie-down grooves is particularly well suited for securing against truck walls, while round or vertical tanks behave differently under motion. Make sure the outlet dimensions and liquid compatibility align directly with your intended application.

Before filling the tank for the first time, inspect the interior through the 5-inch opening and rinse out any residual manufacturing dust if needed. When routing hoses from the 3/4-inch NPT outlet, use appropriate pipe thread sealant to guarantee leak-free connections to your valves, regulators, or pump lines.

For mobile setups in truck beds or utility trailers, route heavy-duty saddle straps directly through the molded tie-down channels to prevent the reservoir from shifting during transit. Always ensure the 5-1/2-inch lid is threaded evenly and securely tightened before taking your vehicle onto the road.

Keep stored liquid temperatures within the rated limit by never exceeding 140 degrees Fahrenheit. To keep the plastic interior clean between uses, periodically empty the tank completely, flush it thoroughly with fresh water, and allow it to dry if storing it empty between work seasons.

Can this tank be used to store drinking water?
Yes. The manufacturer specifies that this reservoir is suitable for potable water as well as other non-flammable liquids.

Can I store gasoline or diesel in this container?
No. The specifications explicitly state that this tank is designed only for non-flammable liquids. Combustible fuels should never be placed inside.

What size is the drain fitting on this tank?
The reservoir features a built-in bulkhead fitting with a 3/4-inch NPT outlet, allowing direct attachment of standard garden hoses or threaded adapters.

Does the tank include tie-down straps for transport?
The listing does not mention tie-down straps being included in the box. It features molded tie-down channels designed to accept standard saddle straps, which must be sourced separately.

What is the maximum liquid temperature this tank can handle?
The poly material is rated for non-flammable liquids with a maximum contact temperature of up to 140 degrees Fahrenheit.