---
product_id: 388484814
title: "AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows"
brand: "knl"
price: "¥4288"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/388484814-aaa-ph-cartridge-filter-off-white-alkaline-mineral-cartridge-filter
store_origin: JP
region: Japan
---

# Minerals up to 90 ppm Regulator controls flow & pH Adds up to +3.0 pH boost AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows

**Brand:** knl
**Price:** ¥4288
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with naturally alkaline, mineral-rich water!

## Quick Answers

- **What is this?** AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows by knl
- **How much does it cost?** ¥4288 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/388484814-aaa-ph-cartridge-filter-off-white-alkaline-mineral-cartridge-filter)

## Best For

- knl enthusiasts

## Why This Product

- Trusted knl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision pH Balancing:** Customizable alkaline boost up to 3.0 pH for perfectly balanced water every time.
- • **Long-lasting Performance:** Reliable service life up to 10,000 liters with consistent mineral and pH enhancement.
- • **Complete Installation Kit:** Includes pH testing liquid and push-fit elbows for seamless setup and instant water quality verification.
- • **Natural Mineral Enrichment:** Infuses essential minerals like potassium, magnesium & calcium naturally from ceramic stones—no chemicals added.
- • **Optimized for RO/NF Systems:** Designed to complement RO/NF purifiers with adjustable regulator ensuring ideal pH without excess salts.

## Overview

The KNL AAA PH Cartridge is a premium alkaline mineral filter designed for RO/NF domestic water purifiers. Crafted with natural ceramic mineral balls, it raises water pH by up to 3.0 and adds essential minerals up to 90 ppm, ensuring balanced, healthful drinking water. With a service life of up to 10,000 liters and included pH testing liquid plus push-fit elbows, it offers precise, customizable water enhancement while maintaining compliance with global health standards.

## Description

AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows

## Features

- KNL-AAA inbuild in food grade/ABS plastic pH and mineral cartridge adds pH (alkaline) up to 3.0 and minerals up to 90 ppm after discarding water10-15 ltr. Service life with regulator up to 10000 ltr. The prime objective is to add pH not minerals. With regulator, the cartridge will add less pH and mineral depending upon the flow rate adjusted from the alkaline cartridge. For getting adequate mineral, user are requested to use NF membrane if feed water TDS is less than 1200 ppm.
- The AAA (Anti-bacterial, Anti-oxidant, Alkaline): made from natural ceramic balls (basically stones) those functions differently. The minerals in water come from earth crust and stones only and these balls are used in same manner without adding any chemical and harmful material. pH booster balls (stones) absorb hydrogen ion from water and therefore water becomes alkaline.
- As per WHO, BIS and EPA and other medical recommendations, acceptable range is pH 6.5 to pH 8.5, less than pH 6.5 and above pH 8.5 is not acceptable and causing many health problems in both the cases. But best and ideal conditions is to maintain between pH 7.2 to pH 8.5. On installation please wash the filter first by 10-15 litres of water and then use 4-5 drops of pH reagent drops in 15-20 ml water in a transparent glass and match with the color chart.
- The Alkaline cartridge must be used with regulator in RO or NF water purifier to get the balanced pH (alkaline) in drinking water. Please note, the KNL-AAA cartridge adds minerals up to 90 ppm and pH up to 3.0 in full capacity. On using regulator, proportionately the added minerals and pH will reduce. Therefore, the main objective to get balanced pH in drinking water not minerals. The cartridge does not contain salt balls to get more TDS. Excess salt is not good for health.
- The AAA cartridge adds essential minerals like potassium, magnesium, calcium, sodium etc and enhances pH up to 3.0 in drinking water by absorbing hydrogen ion from feed water. As per feed water TDS always use right membrane KNL-NF20/KNL-NF40/KNL-NF60/KNL-NF80/KNL-RO membrane. TDS adjuster allows impurities back in drinking water. NF Membrane is far better in comparing UV and TDS adjuster technologies.
- The packet includes KNL-AAA cartridge, pH testing liquid and 2 push fit elbows
- User/Buyers are requested to first check his/her/their water purifier cabinet space before placing order. The KNL AAA filter need additional space after sediment, carbon, membrane, post carbon if used and then KNL-AAA filter. Most of the cabinet does not have sufficient space. Therefore the buyers are requested to check the space in his/her water purifier cabinet.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Alkaline |
| Product Dimensions | 15.8D x 6.4W x 24.1H Centimeters |
| Item Weight | 430 Grams |
| External Testing Certification | BY ISO certified Co. |
| Product Benefits | Using this filter, the output water pH can be maintained as desired by user by using regulator. After membrane the water becomes acidic and to maintain pH back, the fitler is used to add pH |
| Brand | KNL |
| Net Quantity | 1.00 Count |
| Number of Items | 4 |
| Manufacturer | KNL Trading Co. (outsourced) |
| Country of Origin | India |
| Item model number | KNL-AAA 8 inches x 2.5 inches |
| ASIN | B09NNLYBKZ |

## Product Details

- **Material:** Alkaline
- **Product Dimensions:** 15.8D x 6.4W x 24.1H Centimeters
- **Item Weight:** 430 Grams
- **External Testing Certification:** BY ISO certified Co.
- **Product Benefits:** Using this filter, the output water pH can be maintained as desired by user by using regulator. After membrane the water becomes acidic and to maintain pH back, the fitler is used to add pH

## Images

![AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows - Image 1](https://m.media-amazon.com/images/I/81dPV1ScHuL.jpg)
![AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows - Image 2](https://m.media-amazon.com/images/I/71UmgVB7seL.jpg)
![AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows - Image 3](https://m.media-amazon.com/images/I/61285x0QNsL.jpg)
![AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows - Image 4](https://m.media-amazon.com/images/I/81UMTi4dveL.jpg)
![AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows - Image 5](https://m.media-amazon.com/images/I/71hxM4Pf3WS.jpg)

## Questions & Answers

**Q: how is the pH increased? Water flowing through mineral pebbles cannot increase pH by 2.5 pts so quickly.. any chemical added?**
A: these pebbles are magnesium, zinc and calcium enriched and these  remain in high alklaline nature, therefore, when water passes, absorbs minerals and increases pH too

## Frequently Bought Together

- KNL AAA PH Cartridge/Filter - Off White Alkaline Mineral Cartridge Filter for RO/NF Domestic Water purifiers with pH Testing Liquid & 2 Push fit Elbows
- KNL NF60 ro Service kit NF Membrane 100 GPD Sediment, Activated Carbon Block (pre Carbon), Activated Post Carbon, PP Spun Filter & FR 450 Filter/Cartridge/Candle Set for Domestic Water purifiers
- KNL PP Spun (Polypropylene), Milky White, 10 inches Diameter 65 mm (2.5 inches), 130 GSM, Filter/Cartridge 3 pcs Set Used in RO/NF (Nanofiltration) Water Purifier

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*