Pressure tank ยท Global Water Solutions

Global Water Solutions PressureWave 21.1 gal Pressure Tank

A well pressure tank

Updated October 2026

Quick verdict

A mid-size pre-charged tank with a replaceable base and polypropylene liner.

Strength
21.1 gal.
Trade-off
Not UL listed.
Right buyer
Replacing a 20 gal tank.
Price
$228.95
Pipe size
1 in NPT female
Dimensions (seller)
15.3 x 32.08 in
$228.95Retailer price. Prices change; check the current price before you buy.

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Why it matters

Global Water Solutions PressureWave 21.1 gal Pressure Tank: 21.1 gal vertical tank. A mid-size pre-charged tank with a replaceable base and polypropylene liner.

Global Water Solutions lists the PWN-US-80LV at 21.1 gal with a 1 in female NPT connection, a polypropylene liner and a butyl diaphragm, 15.3 in wide and 32.08 in tall.

Who it's for, and who should skip it

Good fit if

  • Replacing a 20 gal tank
  • Well systems needing fewer pump starts
  • Booster systems

Look elsewhere if

  • Very high-demand homes (choose a larger tank)
  • Horizontal installs

Pros and cons

Pros

  • 21.1 gal
  • Polypropylene liner, butyl diaphragm
  • Replaceable base

Cons

  • Not UL listed
  • Vertical only
  • Check pre-charge before install

Limitations to weigh

  • Set the tank's air pre-charge 2 psi below the pump's cut-in pressure (28 psi for a 30/50 switch, 38 psi for 40/60) with the water off.
  • Well pumps usually need a licensed installer, the right wire size and a pressure tank sized to the pump.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Price$228.95Retailer
Model numberPWN-US-80LVRetailer
Capacity21.1 galRetailer
Pipe size1 in NPT femaleRetailer
MaterialSteel, polypropylene linerRetailer
Dimensions (seller)15.3 x 32.08 inRetailer

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Final verdict

A mid-size pre-charged tank with a replaceable base and polypropylene liner; check it against your well, basin or tank before you buy.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

$228.95Retailer price. Prices change; check the current price before you buy.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What connection does it use?
1 in female NPT.
How tall is it?
32.08 in.