PureValue 4 Stage Reverse Osmosis System #4EZ50
PureValue 4 Stage Reverse Osmosis System #4EZ50
Replacement reverse osmosis membrane designed to reduce dissolved contaminants while maintaining strong water production, helping address sediment (2" x 10", 5 micron).
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PureValue 4 Stage Reverse Osmosis System #4EZ50
The PureValue 4 Stage Reverse Osmosis System 4EZ50 is a reliable under-sink reverse osmosis system designed to provide clean, great-tasting drinking water for residential applications.
Manufactured in the USA and built with quality Pentair components, the 4EZ50 combines multi-stage filtration, dependable RO performance, and compact installation for everyday drinking water treatment.
Key Features
• Made in the USA
• 4-stage reverse osmosis filtration system
• 50 GPD Pentair reverse osmosis membrane
• NSF-certified 3.2 gallon storage tank
• Sediment and carbon prefiltration
• Automatic shut-off valve included
• Compact under-sink installation design
• 2-year manufacturer warranty
Advanced 4-Stage Filtration
The PureValue 4EZ50 uses a multi-stage filtration process designed to help reduce sediment, chlorine, taste, odor, and dissolved contaminants for cleaner, fresher-tasting water.
Filtration stages include:
• 5-micron sediment filter
• Two activated carbon cartridges
• 2" × 10" GAC post filter
• 50 GPD Pentair reverse osmosis membrane
Reliable Drinking Water Performance
The included Pentair RO membrane is rated for:
• 50 gallons per day (GPD)
This system is ideal for providing purified water for:
• Drinking
• Cooking
• Coffee and tea
• Ice makers
Quality Components Included
The system includes several installation and operational components designed for reliable everyday use, including:
• Automatic shut-off valve
• Tank ball valve
• Drain connector
• NSF-certified 3.2 gallon storage tank
Compact Under-Sink Design
The compact configuration fits easily beneath most kitchen sinks while providing convenient access to purified drinking water.
The system uses:
• 1/4" tubing from tank to faucet
Specifications
• Product Number: R/O PUREVALUE 4EZ50
• System Type: Under Sink Reverse Osmosis System
• Filtration Stages: 4
• Membrane Capacity: 50 GPD
• Membrane Brand: Pentair
• Storage Tank Capacity: NSF 3.2 Gallon Tank
• Tubing Size: 1/4" from tank to faucet
• Warranty: 2 Years
Additional Information
• Product brochure available for download
• Installation manual available for download

Real People. Real Support.
We’re a small team of water filtration specialists who care about doing things the right way.
Every product on our site has been chosen because it works, not because it’s trendy or pushed by a supplier.
If you ever need help, you’ll talk to someone who actually understands water systems and wants to make this easier for you.
FAQs
How do I cancel or edit an order?
How do I cancel or edit an order?
Unfortunately, we cannot cancel orders due to a change of mind. However, we understand that mistakes happen. If you need to edit your order information, such as the delivery address or contact number, please contact our customer service as soon as possible.
Here’s what you can do:
- Contact our customer service via email address, or Live Chat.
- Have your order number ready when contacting customer service.
- We cannot guarantee changes to orders after 24 hours of placement. This is because orders may be processed once received
How can I track my order?
How can I track my order?
You can track your order by checking the shipping confirmation email, which contains a tracking number and a link to the courier's website. Alternatively, log in to your account on our website, navigate to "My Orders," and click on the tracking link provided for your order.
What if there is a problem with my order?
What if there is a problem with my order?
If there is an issue with your order, please contact our customer service team as soon as possible. You can reach us via email, phone, or through the contact form on our website. Provide your order number and a brief description of the problem so we can assist you quickly.
I didn't receive all off my order?
I didn't receive all off my order?
If part of your order is missing, please check the shipping confirmation email to see if the items were sent separately. If all items should have arrived together or if you have concerns, contact our customer service team with your order number. We’ll investigate and resolve the issue promptly.

