Description

Inline specialty water treatment

Four natural mineral media for a smoother, gently balanced finish to RO water

This 3/8″ quick-connect cartridge is the last stage after reverse osmosis. Four media — FIR ceramic, coral red stone, maifan stone and bioceramic balls — contribute trace minerals as water passes through and lift pH from the mildly acidic range fresh RO produces to a near-neutral 7.5–8.3. Not aggressively alkaline. Just water that tastes like water again.

MIN-MCB-QC38MyAquaFilter SKU
7.5–8.3Target finished pH
4 mediaNatural mineral blend
400 galApproximate capacity
Key benefits

What this media is designed to do

7.5

Gentle pH LiftTargets approximately pH 7.5–8.3 rather than strong alkalization.

4X

Four-Media BlendFIR ceramic, coral red stone, maifan stone and bioceramic media.

CaMgK

Trace MineralsContributes calcium, magnesium, potassium and other trace minerals.

3/8

Direct 3/8″ QCBuilt-in push-to-connect ports — no adapters, no reducers, no fuss.

Water profile

Mineral balance without going strongly alkaline

Four-Natural-Media Remineralization Blend — Inside the cartridge are four selected mineral media: FIR ceramic, coral red stone, maifan stone and bioceramic balls. As purified water passes through, the media gradually contributes calcium, magnesium, potassium and other trace minerals, restoring some of the natural mineral character reverse osmosis removes.

The result is a smoother, fuller, more natural taste with a gently balanced, near-neutral pH rather than strongly alkaline water — a good choice if you like the purity of RO but not the flat mouthfeel that comes with it.

  • 4 Natural Mineral Media — FIR ceramic, coral red stone, maifan stone and bioceramic media.
  • Restores Mineral Character — Adds selected trace minerals back to low-TDS RO water.
  • Smoother, More Natural Taste — Mineral conditioning reduces the flat taste of highly purified water.
  • Gentle pH Balance — Mild remineralization without making the water strongly alkaline.
  • Ideal Final RO Stage — Mineral conditioning after the membrane has completed the primary purification.
Specifications

Product details

Filter type Inline remineralization post filter
Media FIR ceramic, coral red stone, maifan stone, bioceramic media balls
pH output Approx. 7.5–8.3; varies with feed water
Size 10″ × 2″
Connection 3/8″ quick-connect, both ends
Capacity Approx. 400 gallons
Typical life Approx. 6–12 months
Recommended position Final stage after RO membrane or carbon
Country of origin Taiwan
SKU MIN-MCB-QC38

Installation & maintenance

  • ✓Confirm tubing, fitting size, and filtration position before ordering
  • ✓Use cold water only and stay within listed pressure limits
  • ✓Flush a new cartridge before drinking-water use to clear initial mineral fines
  • ✓Replace based on measured performance, water quality, and usage
Compatibility

Match the filter to the water-quality goal

Designed for compatible RO and inline systems using 3/8″ OD tubing. Systems using 1/4″ tubing require an appropriate reducer or adapter, or the 1/4″ version of this cartridge.

A gentle remineralizer and taste/pH conditioner, not a high-alkaline filter and not a contaminant-removal stage. Mineral contribution and finished pH vary with source water, flow rate, contact time and media condition.
Not sure which specialty filter fits?Send your system model, tubing size, current TDS/pH, and desired finished-water profile.

Ask a Water Filter Specialist

Additional information

Weight 18 oz
Dimensions 10 × 2 × 2 in

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