ProOne ProMax Under Counter Water Filter System

Free Shipping

Do you want the cleanest water? Choose the ProOne ProMax Under Counter Water Filter System.

This filter uses leading-edge technology to reduce and remove a broad range of over 200 contaminants including:

• VOCs
• Lead
• Fluoride
• Heavy metals
• Pesticides
• SVCs
• Water disinfectants - Chlorine & Chloramine
• Inorganic non-metallics
• Herbicides
• Pharmaceuticals
• PFOA
• PFOS
• Micro-organisms

The advanced ProMax filter technology is effective at removing contaminants that previously required a reverse osmosis and carbon filter system!

Tested by a certified third-party lab to meet NSF 42, NSF 53, and NSF P231 standards.

Read the ProOne Under Counter installation instructions.

Features of the ProOne Under Counter System - ProMax PMC-4000

• Single stage design
• Premium quality housing and fittings (all NSF approved materials)
• Includes countertop faucet in polished stainless
• Includes 1 filter
• ABS plastic housing - BPA & BPS free
• No power required
• Optional:
• T-Valve adapter available (strongly recommend to make installation easier)
• Easy to replace filter element
• Filter does not remove minerals from your water like reverse osmosis water filters
• Dimensions: 4.75" x 4.75" x 12.5"
• Flow rate: 0.2 - 1.0 gallons/min
• Filter life: up to 1 year
• 1 yr warranty
• Assembled in the USA

What Makes this Under Counter Drinking Water Filter so Special

• As effective as a Reverse Osmosis water filter system
• Does not remove minerals from your water like Reverse Osmosis water filters
• Takes up far less under counter space than other Under Counter water filters
• Removes/reduces fluoride and over 200 water contaminants
• Tested by an independent, certified third-party lab
• No power required!
• Long-lasting filter life (up to 1 year) (need a replacement filter? Click here)
• Easy to replace filter element

Need something more portable? This filter is available in a Countertop style.  

Tested by a Third-Party Lab

This filter was tested by a certified lab. Read the Test Results for the ProOne Under Counter Water Filter System here. 

Frequently Asked Questions

1. How do I know when to replace my filter cartridge?

• When the flow rate diminishes.
• When you notice a change in taste or odor.
• Approaching a years’ usage.

2. What if I don’t use the system for an extended period of time?

• We recommend you drain your system and remove the filter element.
• When ready to use, just reinstall the filter and flush for about 3 minutes before use.

3. How long will my filter last before needing to be replaced?

• The actual life expectancy of your filter will vary depending on the specific chemistry and level of contaminants present in your water source.
• We recommend you replace your filter every 9-12 months. 

Return Policy:

If not satisfied, return the filter in the original packaging within 30 days of receipt for a full refund less return shipping costs.

Shipping Information:

Ships FREE via USPS or UPS and typically arrives within 4-8 business days.

Have more questions? Call us at 1-800-221-5109 or email us.