Fleck 2510 AIQ Backwashing Calcite Filter

The Fleck 2510 AIQ Backwashing Calcite Filter System Raises Low pH Water

Neutralizes low pH water with natural calcite media

The Fleck 2510 AIQ Backwashing Filter is a fully automatic backwashing filtration system. It uses all NSF and FDA approved components, including the media. The electronic computer control cleans the chemsorb of accumulated contaminants while delivering clean, clear, fresh water throughout your home. The electronic control center is easy to set and once set, you never have to set it again (except for DST). It raises the pH of acidic water with natural calcite. Using a calcite system will increase the hardness so a softener after the calcite system may be necessary.

Benefits

• Much simpler to operate and maintain than soda ash injection systems.
• Eliminates corrosion of copper and galvanized plumbing.
• No more blue green stains on sinks and toilets.
• Translucent tank means you can easily see the calcite level so you know when to add more.
• Dome hole plug makes adding more calcite simple and easy.

Not sure what size filter you need? Remember, it's always better to go a little too big than too small.

Features

• Electronic controller has only one internal moving part - simple to set. No complicated programs.
• Includes built-in bypass valve
• 24 Volt Electrical system uses less than $3.00 electricity per year and offers no danger of electrical shock.
• Capacitor backup keeps the memory during power outages.
• The system removes or reduces silt, sand, sediment and cloudiness
• Extremely user friendly
• Low maintenance due to automatic operation

Resources

 
Fleck 2510 AIQ Manual

 
Fleck AIQ Spec Sheet

 
Fleck AIQ User Guide

More Information

Inlet Size 3/4"

Warranty Tank: 5 Years | Valve & Electronics: 5 Years

Replacing a Fleck 2510 SXT?

Pentair has discontinued the Fleck 2510 SXT, and the Fleck 2510 AIQ is its replacement. As of October 1, 2026, all of our 2510 systems ship with the AIQ valve.

The AIQ uses the same proven 2510 internals as the SXT: the same hydraulically balanced piston design and a non-corrosive, fiber-reinforced 3/4" valve body. What's new is everything you interact with:

• Full-color display with a quick-start menu, replacing the SXT's monochrome LCD
• Benchtop programming lets you set up the valve before it's installed, and the valve also has USB-C connectivity
• Modular powerhead that comes apart in four steps, with a backplate hook to hang the cover while you work
• Lighter, more compact build with an easy-grip handle for installation