Description

Purpose: Increases pH level of RO water to approximately 8.4–9.3, improving taste and adding beneficial alkaline properties.

Ideal For:

• Countertop and under-sink RO systems (as a final stage)

• Alkaline drinking water

• Applications requiring enhanced mineral balance and smoother taste

• Use after RO membrane and carbon polishing filter (T33)

Content / Media Composition:

• Calcite (Calcium Carbonate) – adds essential calcium & stabilizes pH

• FIR (Far Infrared Ceramic Balls) – improves water structure and absorption

• Alkaline Ceramic Balls – enhances alkalinity and raises pH

• Tourmaline Balls – contributes to ORP reduction and mineralization

• Magnesium Media – naturally boosts pH and adds trace minerals

Flow Direction: Water enters from IN and exits from OUT toward faucet or dispensing line. Used as the last stage in RO systems.

Max Pressure: 80 PSI
Temperature Range: 36–100 °F
Connection Type: 1/4″ OD Quick Connect
SKU / Reorder: ALK-QC
Lifespan: 300–500 gallons or ~3-12 months (varies by water quality)
Use Only With Cold Water
Manufactured by AquaJB

🔧Installation Tips

Tubing Size

• Most RO systems use 1/4″ OD tubing (standard RO size).
• Some countertop RO systems and specialty setups use 3/8″ OD tubing.
• Tubing size refers to the outside diameter (OD) of the tube.

When Do You Need Elbow Adapters?

• Select 3/8″ OD Tubing if your system uses larger tubing.
• We include 2 elbow adapters to connect the inline filter to 3/8″ OD tubing.

✔ No tools required
✔ Push-to-connect installation

When Do You Need a T-Fitting?

A T-fitting (1/4″ stem x 1/4″ OD Tubing x 1/4″ OD Tubing) is helpful if you are:

• Adding the inline filter to an existing 1/4″ RO line
• Want an easier install with a clean branch connection
• Installing between tubing lines without reworking your layout

✔ Optional accessory
✔ Makes installation easier for some setups

Not Sure Which Option to Choose?

• If unsure, select 3/8″ OD Tubing. The filter comes with 1/4″ connections, and we include two elbow fittings for 3/8″ OD tubing in the package.
• Message us before ordering—we’re happy to help you pick the right fittings.

▶️ Video Installation Guidance

Because RO systems and plumbing layouts can vary, there are multiple valid ways to install an inline filter.

If you are unsure about your setup, we recommend:

• Searching YouTube for “inline RO filter installation”
• Watching a video that best matches your system type
  (under-sink RO, countertop RO, post-filter installation, etc.)

Visual step-by-step videos can be very helpful and often make installation easier and faster.