This page sells genuine Amtrol Well-X-Trol steel pressure tank packages for private wells: WX-202 (20 gal, 6.2 gal drawdown at 30/50, $1,095), WX-203 (32 gal, 9.9 gal, $1,295, the most common replacement), WX-205 stubby (34 gal, 10.5 gal, 30 in tall, $1,695) and WX-250 (44 gal, 13.6 gal, $2,195). All are rated 150 psig, factory precharged to 38 psig, carry Amtrol's 7 year limited warranty and ship with the complete TFP3-RV brass tee kit. Amtrol sizes them by pump flow at a 30/50 switch: a 5 GPM pump takes the WX-202, 7 to 10 GPM the WX-203, 10 to 12 GPM the WX-250. Free LTL freight to all 50 states and free phone sizing with Aidan. Mid Atlantic Water does not currently stock WellMate fiberglass tanks or retention tanks.
By Aidan· 32 Year Water Expert, Mid Atlantic Water ·
Four Amtrol Well-X-Trol Pro Series tanks, 20 to 44 gallons, each shipped as a complete package with the brass tee kit (tee, pressure switch, gauge, relief valve, drain) so your plumber is not chasing parts. Amtrol's own catalog drawdown is on every card below, and Aidan sizes the tank against your pump by phone, free, before you order.
Genuine Amtrol Well-X-Trol Pro Series
7 year Amtrol limited warranty
Complete brass tee kit in every package
Amtrol catalog drawdown on every tank
Free LTL freight, all 50 states
Free phone sizing with Aidan
Watch the 4-minute overview
The number on the label is not water you can use. A '32 gallon' WX-203 delivers 9.9 gallons between pump cycles at a 30/50 switch (Amtrol spec card MC7025). Size by that drawdown figure against your pump's GPM, never by the label.
0 products match your filters.
No products match those filters. Above 12 GPM, Amtrol's sizing table moves to tanks we do not stock (the 62 gallon WX-251 and up) or to two tanks in parallel. Call Aidan at 800-460-5810 with the pump model and he will tell you what to ask the supply house for.
Amtrol Well-X-Trol Steel Pressure Tanks
Amtrol Pro Series steel tanks: 150 psig, stainless steel system connection, 7 year limited warranty. Every package ships with the complete TFP3-RV brass tee kit.
A photo of the pump or its paperwork, or of the old tank's label, whatever's easiest. Don't know the pump? Tell me the house and the symptoms.
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Aidan reads it personally
Real co-owner. Not a chatbot, not a script, not a sales rep on quota. He’s sized thousands of systems.
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Get a direct link to the tank
Aidan texts you the exact product page that fits your water. Buy it, bookmark it, or take the answer elsewhere. No pressure either way.
We never send spam. We never sell your number. Aidan answers personally, 7 days a week, 8a–5p ET.
Where To Buy
Mid Atlantic vs. Amazon, big-box stores & other dealers
The tank itself is only part of the purchase. The rest is whether it arrives as a complete, plumbable package with the factory warranty intact and a human who answers the phone. Framing below is taken from each seller's own published listings (June 2026); where a policy is not published we say so instead of guessing.
MAW (Well-X-Trol)
Amazon
A.O. Smith
AquaScience
Complete tee package (switch, gauge, relief valve)
Yes: TFP3-RV brass tee kit on every Amtrol package
The detail that matters most is what is in the box. A bare tank still needs a tee, a pressure switch, a gauge, a relief valve, and a drain fitting before it holds pressure, and that parts run on install day is where replacement jobs stall. Every package we sell ships with the complete TFP3-RV brass tee kit. The second detail is the drawdown number: we publish Amtrol's own spec card figures (MC7025) for every tank, because a tank bought on an inflated drawdown claim is an undersized tank.
Marketplace listings can be legitimate, but warranty service depends on who the seller actually is. We are an authorized Amtrol dealer: the 7 year limited warranty applies, and we handle the claim with you if anything goes wrong. Call or text Aidan with your pump GPM and switch setting before you buy and he will confirm the size, free.
Step 1: Find Your Problem
What are the signs of Pump short-cycling, surging pressure, and waterlogged or rusted-out well pressure tanks?
Most pressure tanks get replaced, not chosen: the old one waterlogs, the pump starts cycling every few seconds, or the shell rusts through. The four signals below tell you whether the tank is the problem; the full diagnosis, gauge readings included, is in Well Pressure Tank Troubleshooting.
The pump clicks on and off every few seconds
Short-cycling is the classic failing-tank signal. Amtrol sizes its tanks for a 1 minute pump run per cycle on pumps through 3/4 HP and 2 minutes above that; a tank that has lost its air charge, or one too small for the pump, cannot get there, so the switch fires constantly. Frequent starts are what wear out pump motors.
→YESA right-sized tank fixes this
Showers surge and sputter between strong and weak
Pressure that swings hard between the cut-in and cut-out points, or sputters at fixtures, points at a tank that is no longer buffering the pump: a lost air charge, a failed bladder, or an undersized tank cycling too fast. A healthy tank rides the house smoothly between pump cycles.
→YESUsually the tank; we confirm free
The tank is heavy top to bottom, sweats, or tests waterlogged
A healthy captive-air tank is mostly air up top: knock on the upper half and it should ring hollow. A tank that thuds full from top to bottom is waterlogged, meaning the diaphragm or bladder has failed and water has displaced the air charge. There is no rebuilding a failed captive-air tank; it gets replaced.
→YESReplace the tank
Rust streaks, flaking paint, or weeping at the tank base
Steel tanks corrode from the outside when the outside stays wet: well houses, damp crawl spaces, coastal sheds. Visible rust at the base or seams means the shell is on borrowed time; replace it before it leaks, and put the new one where a leak cannot damage the floors below (Amtrol's install manual). If a wet location has already eaten a steel tank, read our fiberglass vs steel guide before buying again.
Most replacements fit one of these four patterns. Find yours and you have your starting tank; the sizing chart below confirms it against your pump.
Replacing a failed tankLike-for-like swapMost tank purchases replace a waterlogged or short-cycling tank; the 32 gal WX-203 is the default residential size
Cabin or 1-2 bedroom home5 GPM pumpAmtrol sizes the 20 gal WX-202 (6.2 gal drawdown) for a 5 GPM pump: cabins, workshops, small homes on a low-flow pump
3-4 bedrooms or a 10-12 GPM pumpOr pump GPM unknownAmtrol's chart puts a 10 to 12 GPM pump on the 44 gal WX-250 (13.6 gal drawdown); it is also the one answer when you cannot find the pump's GPM
Replacing a failed tank on a typical 1/2 HP pump? The 32 gal WX-203 package at $1,295 is the usual answer. A 5 GPM pump or a cabin: the WX-202 at $1,095. Headroom under 4 ft: the WX-205 stubby at $1,695. A 10 to 12 GPM pump, or you cannot find the pump's GPM: the WX-250 at $2,195. We no longer stock WellMate fiberglass tanks or retention tanks; if a damp well house or crawl space has already eaten a steel tank, read Fiberglass vs steel before you buy again. Pumps above 12 GPM: call Aidan, because Amtrol's chart moves to sizes we do not carry.
Amtrol's catalog drawdown for each tank at both common switch settings, from spec card MC7025. Match the tank to your pump's GPM, not to the house: the full method, with the pump-label trick and Amtrol's sizing table, is in Well Water Pressure Tank Sizes. If you cannot find the pump's GPM and want one answer, the WX-250 covers every 1/2 HP pump from 7 to 12 GPM at 30/50.
Drawdown is the water you get between pump cycles and the only number that sizes a tank: 6.2 gallons from a '20 gallon' WX-202, 9.9 from a '32 gallon' WX-203, 10.5 from the WX-205, 13.6 from a '44 gallon' WX-250, all at a 30/50 switch (Amtrol MC7025). A 40/60 switch takes about 13 percent off each figure; the chart shows both.
Pre-charge: 2 psi below cut-in, set before the tank holds water
Well-X-Trol tanks leave the factory precharged to 38 psig, which suits a 40/60 switch; on a 30/50 system the pre-charge is set to 28 psig, with the tank drained, before it goes into service. Amtrol's install manual (MC10185) has a licensed professional check it yearly and warns not to add air to a tank that has lost its charge: a tank losing air has a failed diaphragm and gets replaced, not pumped up.
A like-for-like tank replacement is one of the most routine jobs in residential plumbing: drain down, swap the tank, set the pre-charge, plumb the tee, repressurize. Every package arrives with the complete brass tee kit so there is no parts run, and Aidan is a phone call away if your plumber hits anything unusual.
1-3 hrs
Typical like-for-like replacement for a licensed plumber: drain down, swap the tank, set the pre-charge, plumb the tee, repressurize.
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No drain line, no electricity used by the tank. The pressure switch on the tee wires into the existing pump circuit; the tank itself is a sealed vessel.
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Phone support included. Aidan walks your plumber through pre-charge settings, switch matching, and anything unusual about your setup.
What to have ready
Know your switch setting (30/50 or 40/60)The pre-charge gets set to match the pressure switch your system actually runs. Look at the gauge while the pump cycles: the low number is cut-in, the high number is cut-out.
Pre-charge set to match the switchSet with the tank empty of water, 2 psi below the pump's cut-in: 28 psig for a 30/50 switch, 38 psig (the factory setting) for 40/60. Amtrol's manual assigns the check to a licensed professional.
Tee package parts (included)Every package ships with the complete TFP3-RV brass tee kit: tee, pressure switch, gauge, relief valve, and drain.
Clearance and a level floorCheck the footprint before ordering: the WX-202 is 15 in wide x 32 in tall, the WX-203 15 x 47, the WX-205 stubby 22 x 30, the WX-250 22 x 36 (Amtrol MC7025). Amtrol's manual wants a level floor, no freezing, no direct sun, and not a spot where a leak would damage the floors below.
Shutoff valve and a way to drain downThe pump circuit gets switched off and the system drained to zero pressure before the old tank comes out. A full-port shutoff and a nearby drain or hose run make the job clean.
What your plumber will do
Switch off the pump circuit at the breaker and open a faucet to bleed system pressure to zero.
Drain the old tank and disconnect it at the tee. A waterlogged tank is heavy; plan the lift before unbolting anything.
Set the new tank on a level, solid floor with the system connection facing the plumbing run.
Set the pre-charge BEFORE the tank holds any water: pump cut-in minus 2 psi (Amtrol MC10185). This is the step that decides whether the tank delivers its rated drawdown.
Assemble the tee package onto the tank connection: tee, pressure switch, gauge, relief valve, and drain (the TFP3-RV kit on Amtrol packages has all of it).
Plumb the well line in and the house line out. The system connection is 1 in NPTF on the WX-202 and WX-203, 1-1/4 in NPTF on the WX-205 and WX-250.
Wire the pressure switch into the pump circuit exactly as the old switch was wired, then restore power.
Open the water back up slowly and let the pump bring the system to cut-out. Watch a full cycle on the gauge: the pump should start at cut-in, run smoothly, and stop at cut-out.
Check every joint for leaks at full pressure. Amtrol calls for a yearly pre-charge check by a licensed professional; a tank that has lost air is not recharged, it is replaced.
Building a whole treatment train? The system builder generates a plumbing schematic for your specific setup, with the pressure tank in the right place at the front. Send it to your plumber before install day.
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★★★★★
Well-x - Trol 205
Mid Atlantic Water was great to deal with. I highly recommend them, great pricing, fast shipping and awesome communication. I called before ordering to discuss the well tank, iron filter and softener that I was going to purchase. Aidan answered all my questions, confirmed my research and choices where good and that the equipment would handle and correct the condition of my water. He also gave me his recommendation on a sediment filter and helpful advice on a cycle stop valve that I was considering. My family couldn't be happier with the results.
JP
Joseph P., United States
Verified Buyer
Well-X-Trol WX-205 Pressure Tank Package · May 2020
FAQ
Frequently asked questions
The four Amtrol Well-X-Trol packages here run $1,095 (WX-202, 20 gal) to $2,195 (WX-250, 44 gal), with the 32 gal WX-203 at $1,295, each with the complete brass tee kit and free LTL freight. Plumber labor is on top of that; our cost guide covers install ranges and what an undersized tank costs you in pump life.
Size from the pump's GPM, not the house. Amtrol's table at a 30/50 switch: a 5 GPM pump takes the 20 gal WX-202, a 7 to 10 GPM pump the 32 gal WX-203 (or the WX-205 where headroom is short), a 10 to 12 GPM pump the 44 gal WX-250. Most 2 to 4 bathroom homes are on a 1/2 HP pump in the 7 to 12 GPM range. If you cannot find the GPM and want one answer, the WX-250 covers every 1/2 HP pump from 7 to 12 GPM. The full method is in our sizing guide.
2 psi below the pump's cut-in, set with the tank empty of water: 28 psig on a 30/50 switch, 38 psig on a 40/60 (Well-X-Trol tanks leave the factory at 38). Amtrol's manual has a licensed professional check it yearly and says not to add air to a tank that has lost its charge; a tank losing air has a failed diaphragm and is replaced.
The tank plus the complete TFP3-RV brass tee kit: the tee itself, the pressure switch, the pressure gauge, the relief valve, and the drain fitting, every part that lives at the base of a pressure tank. Bare tanks from marketplaces and big-box stores leave you sourcing those five parts separately, and the install stalls when one of them is not on the truck. Amtrol's 7 year limited warranty applies to every tank.
Not currently; we carry the Amtrol Well-X-Trol line only. Fiberglass earns its place when the outside of the tank gets wet (a well house, a damp crawl space, a coastal shed), not because the water is acidic or high in iron; the water only touches the liner in either design. If that describes your space, read Fiberglass vs steel: when a WellMate beats a Well-X-Trol and buy the WellMate from a plumbing supply house.
Tell Aidan about your pump and household below. He replies with the right tank size, the correct pre-charge for your switch setting, and install notes for your layout. Same-day during business hours, next morning otherwise.
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Aidan
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