Description
The Alkaline Mineral Cartridge is an inline filter that adds healthy minerals back into purified water. Reverse osmosis removes almost all dissolved solids, including calcium and magnesium. Some people find RO water tastes flat as a result. This cartridge contains a blend of mineral media that slowly dissolves into the water, raising the mineral content and pH so it tastes closer to good-quality bottled water.
It is the easiest way to upgrade a standard 5-stage RO to a 6-stage mineral RO system.
What the Alkaline Mineral Cartridge does
- Adds calcium and magnesium to RO water
- Raises pH from slightly acidic towards neutral or mildly alkaline
- Improves taste for drinking, tea and coffee
- Reduces the “flat” taste some people notice in RO water

Mineral media inside
The cartridge contains a blend of natural mineral media such as calcite, magnesium-based media and mineral ceramic balls. Exact blends vary by model. As water flows through, small amounts of minerals dissolve, which lifts the pH and total dissolved solids slightly. The effect is gentle and stable, and the water stays clear.
Key features
- Inline design with 1/4 inch quick-connect fittings
- Standard T33-size shell, fits most home RO systems
- Food-grade mineral media
- Installed after the post carbon filter, before the faucet
- No electricity needed
Specifications
| Type | Inline alkaline / mineral cartridge |
| Size | Approx. 2 inch x 10 inch |
| Fittings | 1/4 inch push-fit |
| Typical pH after cartridge | Approx. 7.5–8.5 (depends on feed water) |
| Service life | 6–12 months |
Is an Alkaline Mineral Cartridge right for you?
If you already have an RO system and like the purity but not the taste, this cartridge is a simple fix. Many of our customers in Muscat add it during a routine filter change. It can also be used after other low-mineral water sources, such as distilled water units. For a complete system with mineral stage already built in, see our reverse osmosis systems, or browse more cartridges in the filter cartridges range.
Replacement interval
Replace every 6 to 12 months, or when the taste effect fades. A simple pH test strip shows when the cartridge is running out. To learn more about water pH, see Wikipedia.
Frequently asked questions
Will it raise TDS on my meter? Yes, slightly. That is expected because it is adding minerals.
Is alkaline water a medical treatment? No. We recommend it for taste. Speak to your doctor for any health questions.
Can you fit it? Yes, our technicians fit it in a few minutes during a service visit.
Order the Alkaline Mineral Cartridge in Oman
Farz Water stocks mineral cartridges in Muscat. Contact us or call / WhatsApp +968 9455 4533.







Reviews
There are no reviews yet.