Best 35-Gallon Pressure Tanks for Well Water Systems

A 35-gallon pressure tank is a practical size for many private-well systems, but the products available here include tanks rated at 30, 34, and 52 gallons rather than exactly 35 gallons. The Red Lion RL34A is best for buyers prioritizing potable-water certifications; the VEVOR 34-gallon model suits buyers who need a near-35-gallon tank for non-drinking-water use. The 30-gallon VEVOR is a smaller alternative, while Amtrol and Reliance offer other options with different listed details.

Product Listed capacity Best suited for
Red Lion RL34A 34 gallons Well systems needing stated drinking-water certifications
VEVOR Vertical Tank 34 gallons Non-potable systems seeking near-35-gallon capacity
VEVOR Vertical Tank 30 gallons Buyers who can use a smaller tank
Amtrol WX-203 Not specified in supplied details Buyers prioritizing its liner and steel connection
Reliance Vertical Steel Tank 52 gallons Buyers needing substantially more listed capacity

Red Lion RL34A 34-Gallon Tank

Red Lion RL34A vertical 34-gallon well pressure tank

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Best for: Well owners seeking a near-35-gallon tank with listed drinking-water certifications. The RL34A is designed to maintain water pressure while a well pump is not running, and its 34-gallon capacity is close to the requested size.

Its listed construction includes a 20-gauge steel tank, 304 stainless steel water connection, butyl rubber diaphragm, and polypropylene liner. The product information states that it is certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372.

Setup note: It arrives pre-charged to 20 PSI for transportation. The air pressure must be adjusted to 2 PSI below the pressure-switch cut-in setting. Confirm the system’s requirements before installation.

VEVOR 34-Gallon Vertical Tank

VEVOR 34-gallon vertical well pressure tank

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Best for: Buyers who need a near-35-gallon tank for a non-drinking-water well, farm, school, or irrigation system. Its listed dimensions are 19.7 by 19.7 by 41.7 inches, so measure the installation space before choosing it.

The tank is made from 1.5 mm carbon steel and has a 1-inch NPT connection. Its stated pre-charge is 2.5 bar (36.2 PSI), and the supplied specifications list a maximum internal pressure of 8 bar (116 PSI) and a working temperature up to 70°C (158°F).

Limitation: VEVOR states that this tank is not suitable for drinking water and is not frost-proof. Choose another option if the system requires potable-water use or exposure to freezing conditions.

VEVOR 30-Gallon Vertical Tank

VEVOR 30-gallon vertical well pressure tank

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Best for: Buyers who want a smaller alternative to a 35-gallon tank. This model has a 30-gallon capacity and listed dimensions of 16.93 by 16.93 by 31.7 inches, which may suit a space that cannot accommodate a taller tank.

Its features include 1.2 mm carbon steel construction, a 1-inch NPT connector, and a 2 bar (29 PSI) pre-charge. The supplied specifications list a maximum internal pressure of 6 bar (87 PSI) and a working temperature up to 90°C (194°F).

Limitation: It is five gallons below the target size, and the listing says it is not suitable for drinking water or frost-proof. Confirm that its capacity and operating limits fit the system.

Amtrol WX-203 Well-X-Trol Tank

Amtrol WX-203 Well-X-Trol well water tank

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Best for: Buyers comparing pressure tanks on liner and connection materials. The supplied product details identify a high-strength steel shell, a virgin polypropylene inner liner, and a steel system connection designed to withstand aggressive water.

The listing name identifies this as a stand well-water tank, making it relevant to private-well installations. These material details may help shoppers comparing construction approaches, but the supplied information does not state the tank’s capacity, dimensions, pre-charge, or connection size.

Limitation: Do not assume this is a 35-gallon model based on the product name alone. Verify capacity and system specifications with the seller or product documentation before selecting it.

Reliance 52-Gallon Vertical Tank

Reliance 52-gallon vertical steel pressure tank

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Best for: Buyers whose system calls for more capacity than a 35-gallon tank. The listing describes a free-standing, powder-coated vertical steel tank with 52 gallons of capacity for household or irrigation water supply.

Reliance states that the tank is designed to maintain steady pressure and reduce well-pump cycling. Its listed pipe connection is 1-1/4 inches, a detail to compare with the existing plumbing before purchase.

Limitation: At 52 gallons, it is substantially larger than the target size. Confirm that the location has room for it and that its connection matches the system.

Buying Guide: How To Choose A Well Pressure Tank

Is 34 gallons close enough to 35 gallons?

The listed 34-gallon models are the closest matches in this selection. A tank’s nominal capacity is not the same as the amount of water delivered between pump cycles. Select a tank based on the system’s required drawdown, pump, pressure switch, and available space—not capacity alone.

Should the tank be rated for drinking water?

Check the product’s stated use and certifications if the tank will supply potable water. The Red Lion listing specifies drinking-water certifications. VEVOR explicitly says its 30- and 34-gallon tanks are not suitable for drinking water.

What pressure and connection details matter?

Compare the tank’s pre-charge instructions with the pressure-switch cut-in setting, and verify the maximum pressure against system requirements. Check the connection size and type as well: the VEVOR models list 1-inch NPT connections, while Reliance lists a 1-1/4-inch pipe connection.

How much room should be available?

Compare product dimensions with the installation area, including room for plumbing access and maintenance. The VEVOR 34-gallon tank is listed at 41.7 inches tall; its 30-gallon counterpart is listed at 31.7 inches tall. Verify the full measurements before ordering.

Frequently Asked Questions

Is a 34-gallon pressure tank the same as a 35-gallon tank?

No. A 34-gallon tank is one gallon smaller by its listed capacity. Check whether that difference works for the well system’s required drawdown and operating needs.

Can a pressure tank increase a well pump’s water supply?

A pressure tank stores pressurized water and helps reduce pump start-stop frequency. It does not create a new water source or increase the well’s underlying production.

Can I use the VEVOR tanks for drinking water?

No. The supplied VEVOR product details state that both the 30- and 34-gallon models are not suitable for drinking water.

What pre-charge should I use?

Follow the tank manufacturer’s instructions and match the air charge to the pressure-switch setting. Red Lion specifies setting the air pressure 2 PSI below the switch’s cut-in setting.

Does the Amtrol WX-203 have 35 gallons of capacity?

The supplied product details do not state its capacity. Confirm the model’s capacity in its product documentation before buying it for a 35-gallon requirement.