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Amtrol (141S344) RO Steel Pressure Tank 4.4 Gallon 1/4" NPT White

Product Code 141S344

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AMTROL has been manufacturing Reverse Osmosis Water Storage Tanks for over 4 decades. Not only have we been doing it longer than anyone else, we actually invented the technology behind RO tanks.

Our proven technology, vast experience and countless other qualities are what place AMTROL high above other manufacturers with their look-alike tanks. Remember, looks can be deceiving. And in the end, you always get what you pay for.

Fully enclosed polypropylene and butyl water reservoir ensures water purity, and there's less rubber/water contact than with a bladder tank.

AMTROL's pioneering diaphragm design provides longest life and most complete water discharge.


  • Made in USA
  • Unsurpassed customer service
  • Expert technical support
  • ISO Certified
  • All models NSF Listed
  • Industry's most comprehensive five-year warranty
  • AMTROL invented technology
  • 4 decades
  • CE


  • Fittings: 1/4"
  • Size: 4.4 Gallons
  • Storage Capacity: 2.8 Gallons
  • Diameter: 11" Dia. x 15" Height

    Proper selection of pressure tank can have a major impact on effective water management. Introducing the best in its class, the Amtrol 141S351 RO Steel Pressure Tank. Let's examine the factors that make this tank indispensable for your water system requirements. 
    The Amtrol 141S351 RO Pressure Tank is made of strong steel and has unmatched durability. Because of its sturdy design, which guarantees resistance to wear and corrosion, it is a dependable option for both commercial and residential applications. 
    This pressure tank, with its roomy 4.4-gallon capacity, is the ideal mix of practicality and size. The Amtrol 141S351 guarantees steady pressure for a flawless water supply experience regardless of your water demands. 
    This pressure tank's 1/4" NPT connector, which was included in its design to maximize versatility, makes installation in a variety of water systems simple. It is a hassle-free addition to any setup, whether it is for reverse osmosis systems or other water filtration applications, thanks to its small size and user-friendly design. 
    Utilize the Amtrol 141S351 RO Steel Pressure Tank for improved performance. Its cutting-edge construction guarantees ideal pressure control, lessening the burden on your water system and extending the life of your machinery. Bid adieu to inconsistent water pressure and welcome to dependable operation.