WELL-X-TROL Pro Access Tanks

Well-X-Trol Pro Access tanks are pre-pressurized diaphragm well pressure tanks from Amtrol, built with a full stainless steel waterway that extends through the stand opening at the base of the unit. Where a standard elbow-only well tank requires a full tank tee assembly at installation height, the Pro Access design routes the connection down to floor level, allowing a shorter tank tee and a cleaner hookup. Every Well-X-Trol Pro Access tank is rated to 150 PSIG maximum working pressure, factory pre-charged at 38 PSIG, and backed by a 7-year limited warranty. The heavy-duty butyl diaphragm and virgin polypropylene liner are listed to NSF International Standard 61 for potable water service. For contractors who want a reliable connection and a faster installation on residential well systems, the Pro Access lineup covers 20 to 119 gallons in a single consistent design.

KEY SUBCATEGORIES / PRODUCT TYPES

WX-202PA 20 Gallons

The WX-202PA is the compact entry in the Well-X-Trol Pro Access lineup, rated at 20 gallons with a 15-3/8-inch diameter and a 31-5/8-inch height. Connection is FNPT x FNPT stainless steel, pre-charged to 38 PSIG, with a 150 PSIG maximum working pressure and a 7-year limited warranty. The WX-202PA fits tight mechanical rooms and crawl spaces where a larger tank can't swing. Sized well for single-family residential systems with lower daily demand or as a secondary tank in a dual-tank configuration, the WX-202PA delivers the Pro Access stainless pipe-through-stand design in the smallest footprint the lineup offers.

WX-202XLPA 26 Gallons

The WX-202XLPA steps up to 26 gallons in the same 15-3/8-inch diameter shell as the WX-202PA, adding tank height and drawdown volume without requiring more floor space. The Pro Access stainless steel waterway is extended through the stand opening, keeping the connection at floor level and wrench-flat ready. At 7-year limited warranty coverage and 150 PSIG maximum working pressure, the WX-202XLPA works well for single-family homes where the installer wants a step up in drawdown from a 20-gallon model without committing to a larger diameter tank. The 26-gallon capacity makes it a practical upgrade for retrofit jobs where a 20-gallon tank is undersized.

WX-203PA 32 Gallons

The WX-203PA delivers 32 gallons of capacity and carries the same core construction specs as the rest of the Pro Access lineup: 150 PSIG max working pressure, 38 PSIG factory pre-charge, heavy-duty butyl diaphragm, NSF 61-listed polypropylene liner, and a 7-year limited warranty. The WX-203PA drawdown at 30/50 PSI is 10.9 gallons and drops to 9.4 gallons at a 40/60 PSI switch setting, giving installers a clear decision point when sizing against pump run-time requirements. For residential systems running a standard submersible with a 30/50 or 40/60 pressure switch, the WX-203PA is a strong mid-range choice that handles typical household demand without the footprint of a 44-gallon tank.

WX-250PA 44 Gallons

The WX-250PA is a 44-gallon Pro Access tank with a 22-inch diameter and 36-inch height, built for residential systems where pump cycling is a documented issue or where household demand regularly peaks during high-use hours. The stainless steel system connection is extended through the stand to floor level with wrench flats for clean, controlled tightening. At 150 PSIG maximum working pressure and a 7-year limited warranty, the WX-250PA handles most residential pressure switch configurations. The 22-inch diameter does require a bit more mechanical room footprint than the smaller-diameter models, but the drawdown volume at either 30/50 or 40/60 PSI delivers noticeably more run time between pump cycles.

WX-251PA 62 Gallons

The WX-251PA is a 62-gallon Pro Access tank in the same 22-inch diameter shell as the WX-250PA, built for higher-demand residential applications including homes with irrigation zones, large households, or systems where undersizing has caused repeated pump failures. The Pro Access pipe-through-stand design brings the 1-1/4-inch stainless steel connection to floor level, matching the same wrench-flat FNPT fitting configuration as the rest of the lineup. The WX-251PA carries 150 PSIG maximum working pressure and a 7-year limited warranty. When a specifier needs to demonstrate adequate drawdown volume on a larger system, the 62-gallon rating gives the documentation-ready numbers to support the spec.

WX-255PA 81 Gallons

The WX-255PA is an 81-gallon Pro Access tank, still at a 22-inch diameter, and is the largest in the 22-inch shell range. At 111 lbs., freight delivery and lift gate logistics apply. The 1-1/4-inch stainless steel connection runs extended through the stand for the same floor-level hookup as every other Pro Access model. At 150 PSIG maximum working pressure and a 7-year limited warranty, the WX-255PA is specified for large residences, farms, or any system where the installer wants to eliminate the pump cycling conversation entirely. The 81-gallon drawdown capacity covers high-peak-demand scenarios that smaller tanks can't address without adding a second tank.

WX-302PA 86 Gallons

The WX-302PA is an 86-gallon Pro Access tank with a 26-inch diameter, rated to 150 PSIG maximum working pressure with a 1-1/4-inch stainless steel system connection extended through the stand. At 108 lbs., this model requires freight delivery and may call for a lift gate at the delivery point. The WX-302PA carries a 7-year limited warranty and the same heavy-duty butyl diaphragm and NSF 61-listed polypropylene liner as the rest of the Pro Access lineup. For large residential well systems, multi-structure installations, or agricultural applications with high daily demand, the WX-302PA delivers the drawdown volume to match. The 26-inch diameter gives more capacity in a shorter overall height compared to a narrower tank at the same gallon rating.

WX-350PA 119 Gallons

The WX-350PA is the largest model in the Well-X-Trol Pro Access lineup at 119 gallons, with a 26-inch diameter and a 1-1/4-inch stainless steel connection through the stand. At 148 lbs., lift gate delivery is a real consideration. The 7-year limited warranty and 150 PSIG maximum working pressure apply here as they do across every Pro Access model. The WX-350PA is specified for high-demand residential, agricultural, or multi-unit applications where maximum drawdown and minimum pump cycling are the primary design criteria. When pump protection and run-time adequacy are the governing spec requirements, the 119-gallon capacity removes those variables from the conversation.

BUYING GUIDE / HOW TO CHOOSE

Choosing among Well-X-Trol Pro Access tanks starts with one number: drawdown volume. Drawdown is the usable water the tank delivers between pump cut-in and cut-out pressure at a given pressure switch setting. A 20-gallon WX-202PA at a 30/50 PSI switch setting delivers 6.8 gallons of drawdown. A 32-gallon WX-203PA at the same setting delivers 10.9 gallons. The right Well-X-Trol Pro Access tank is the one whose drawdown at the installed switch setting meets or exceeds the pump manufacturer's minimum run-time requirement, typically 1 to 2 minutes for residential submersibles.

Pressure switch setting is the second variable. A 40/60 PSI switch reduces available drawdown compared to a 30/50 setting on the same Well-X-Trol Pro Access tank. If a system is moving to a higher pressure range, the drawdown calculation should be revisited from scratch. All Pro Access models are factory pre-charged at 38 PSIG. Before installation, the pre-charge should be checked and adjusted to 2 PSI below the pump cut-in pressure 28 PSIG for a 30/50 switch, 38 PSIG for a 40/60 switch.

Tank diameter determines floor space, and that matters in crawl spaces and tight mechanical rooms. The WX-202PA and WX-202XLPA run at 15-3/8 inches in diameter. The WX-203PA through WX-255PA expand to 22 inches. The WX-302PA and WX-350PA step up to 26 inches. For jobs where overhead clearance is limited, the Pro Access connection at floor level can also help, since there's no need to reach up to a mid-tank elbow to make the system connection.

Connection size scales with tank capacity: smaller models in the Well-X-Trol Pro Access lineup use a 1-inch FNPT stainless steel connection, while mid and large capacity models from the WX-251PA up use a 1-1/4-inch connection. Confirm connection size against the tank tee specification before ordering. Concentrated chlorine is not recommended in any Well-X-Trol Pro Access system, as prolonged exposure may degrade the butyl diaphragm over time.

FAQs

What's the difference between a Well-X-Trol Pro Access tank and a standard Well-X-Trol stand model?

The difference between a Well-X-Trol Pro Access tank and a standard Well-X-Trol stand model is the connection configuration at the base. A standard stand model has only an elbow at the bottom of the tank. A Pro Access model adds a full stainless steel pipe from that elbow through to the stand opening, dropping the system connection down to floor level and allowing the use of a shorter tank tee. Both configurations share the same tank body, diaphragm, liner, pressure ratings, and 7-year limited warranty. The Pro Access design exists for contractors who want a cleaner connection point and a faster, more repeatable hookup.

How do the Well-X-Trol Pro Access tank SKUs differ from each other?

Well-X-Trol Pro Access SKUs differ primarily by tank capacity and shell diameter. The WX-202PA is 20 gallons at 15-3/8 inches in diameter; the WX-202XLPA is 26 gallons at the same diameter; the WX-203PA is 32 gallons; the WX-250PA is 44 gallons at 22 inches in diameter; the WX-251PA is 62 gallons; the WX-255PA is 81 gallons; the WX-302PA is 86 gallons at 26 inches in diameter; and the WX-350PA tops the lineup at 119 gallons. All models share 150 PSIG maximum working pressure, 38 PSIG factory pre-charge, heavy-duty butyl diaphragm, NSF 61-listed liner, and a 7-year limited warranty.

What PSI should a Well-X-Trol Pro Access tank be pre-charged to before installation?

Well-X-Trol Pro Access tanks are factory pre-charged at 38 PSIG. The correct installation pre-charge is 2 PSI below the pump cut-in pressure. For a 30/50 PSI pressure switch, the target pre-charge is 28 PSIG; for a 40/60 switch, the target is 38 PSIG. Always verify and adjust the pre-charge with the tank isolated from system pressure and the water side fully drained before connecting to the system.

Are Well-X-Trol Pro Access tanks safe for potable water systems?

Well-X-Trol Pro Access tanks are listed to NSF International Standard 61 for potable water service. The virgin polypropylene liner and heavy-duty butyl diaphragm meet EPA requirements for potable water as defined in the Safe Drinking Water Act of 1986. Concentrated chlorine is not recommended, as prolonged exposure may degrade the butyl diaphragm over time. For systems with periodic shock chlorination, confirm compatibility with Amtrol's engineering documentation before installation.

Which Well-X-Trol Pro Access tank is right for a residential well system with a 40/60 PSI switch?

Sizing a Well-X-Trol Pro Access tank for a 40/60 PSI pressure switch requires matching drawdown volume to pump minimum run time. The WX-203PA (32 gallons) delivers 9.4 gallons of drawdown at a 40/60 setting; the WX-250PA (44 gallons) delivers more. For a residential submersible pump requiring 1 to 2 minutes of minimum run time, start with the 32-gallon WX-203PA and confirm drawdown adequacy against the pump manufacturer's specification. Larger households or systems with irrigation demand may require stepping up to the WX-250PA or WX-251PA to keep pump cycling within acceptable limits.