Replacement 4-Gallon RO Metal Tank

for Vertex Systems: PT-4GR, PT-5GR, PT-4.0/5, ISOTwist Compatible

SKU: T-1401

Vertex | Replacement RO Pressure Metal Tank - Pure n Natural Systems

Replacement 4-Gallon RO Metal Tank

for Vertex Systems: PT-4GR, PT-5GR, PT-4.0/5, ISOTwist Compatible

SKU: T-1401

Translation missing: en.product.general.sale_price $119.85

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About this product

The Vertex Replacement RO Pressure Metal Tank stores purified water produced by your reverse osmosis system and delivers it to the faucet with steady pressure and reliable flow. Designed as a direct replacement for compatible Vertex RO systems, this durable metal tank helps restore normal draw volume and performance when an existing tank becomes worn. Replacing the pressure tank is an effective way to maintain consistent, on-demand RO drinking water in residential and light commercial installations.

(The standard 4.0 gal plastic tank Vertex POU Filter Systems are no longer available and are being replaced with this 4-gallon metal tank instead)

For use in the following RO Systems:

Best for

  • Replacing a failed, leaking, or waterlogged RO pressure tank
  • Restoring normal water flow and dispensing volume at the RO faucet
  • Homes, offices, and light commercial RO installations
  • Long-term maintenance of point-of-use RO systems

Specifications

What's in the box

One (1) Vertex replacement RO pressure metal tank

Installation tips

  • Shut Off Water Supply: Turn off the feed water to the RO system.
  • Relieve Pressure: Open the RO faucet to fully depressurize the system.
  • Disconnect Old Tank: Remove the tubing connection from the existing pressure tank.
  • Remove Old Tank: Carefully lift out the old tank and dispose of it properly.
  • Install New Tank: Place the new pressure tank in position and reconnect the tubing securely.
  • Check Air Charge (if required): Confirm the tank’s pre-charge pressure matches system requirements before use.
  • Restore Water Supply: Turn the water back on and allow the tank to fill.
  • Flush the System: Discard the first full tank of water after installation.
  • Check for Leaks: Inspect all connections before returning the system to normal use.

Always follow your Vertex RO system instructions when servicing pressure components.

Frequently asked questions

What does an RO pressure tank do?
It stores purified water produced by the RO membrane and delivers it to the faucet with consistent pressure.

Which systems is this tank compatible with?
This replacement tank is designed for Vertex reverse osmosis systems that use a pressure storage tank. Compatible models are listed in the About this product section above.

How do I know if my RO pressure tank needs replacement?
Common signs include very low flow at the faucet, short draw volumes, or the tank feeling unusually heavy when empty.

Does the tank come pre-pressurized?
RO pressure tanks are typically pre-charged from the factory, but air pressure should be verified during installation to ensure proper performance.

How long does an RO pressure tank last?
Service life varies based on water quality and usage, but RO pressure tanks often last several years before replacement is needed.

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