Water Ionizer PRIME 901S Undercounter
Original price was: £2,448.00.£1,995.00Current price is: £1,995.00.
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Free Delivery: All orders over £100 enjoy free shipping.
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5 Year Warranty: Peace of mind guaranteed, 5 years of full product warranty.
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14 Day Return: Shop risk-free with our 14 day return policy.
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Affiliate Program: Turn recommendations into rewards, sign up as an affiliate today.
Water Ionizer PRIME 901S Undercounter – Compact Power, Premium Hydration
Healthy Living, Advanced Hydration
Leading a healthy lifestyle starts with the water you drink. With the PRIME 901S Undercounter Ionizer, you can enjoy antioxidant rich alkaline water anytime, without compromising your kitchen’s style. Installed discreetly under the sink and paired with a sleek PRIME Faucet touchscreen, it delivers advanced technology and superior performance in a compact design.
Why Choose the PRIME 901S Undercounter?
- 9 Platinum-Coated Titanium Plates → strong ionization and durability
- Dual Multi-Stage Filtration → safe, clean, great-tasting water
- 1,600+ Programmable Settings → fully personalized pH & ORP levels
- Smart PRIME Faucet Display → easy-to-use touchscreen control
- Automatic Cleaning & Diagnostics → hassle-free maintenance
- Undercounter Design → saves counter space, keeps a modern look
- 5-Year Warranty & Dedicated Support → long-term peace of mind
Premium Multi-Stage Media
DUAL Filtration System
The PRIME 1301S Countertop is equipped with an advanced dual-filtration system designed to deliver safe, clean, and refreshing water:
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Premium Activated Carbon Filter – reduces heavy metals, chlorine, and fluoride; silver activation prevents bacterial growth inside the filter and protects the electrolysis chamber.
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Multi-Stage Sediment Filter – removes fine particles and impurities, prolonging the life and efficiency of the ionizer.
Together, these filters ensure that every glass of water is not only alkaline and antioxidant-rich but also pure and refreshing.
| Product type |
Alkaline Water Ionizer |
|---|---|
| Model Name |
PRIME 901-S |
| Dimensions |
30(W) x 38(H) x 15.5(D) cm |
| Unit Weight |
6.5Kg |
| Max. Water Supply Pressure |
70 psi |
| Applicable Water Temperature |
5~30 ℃ |
| Electrolysis Method |
Continuous Electrolysis |
| Cleaning Method |
Automatic & Manual |
| Rated Voltage |
110V or 220V |
| Power Consumption |
450W |
| Power Supply Device |
450Watts SMPS |
| Filter Number |
2 Filters (Dual Filtration system) |
| Filter Replacement |
Cartridge |
| Filter Life |
6 months (20Liters / day) |
| Plate Materials |
Platinum Titanium |
| Plate Number |
9 Plates |
| Plate type |
Mesh (125X60mm) |
| Flow Control |
Automatic |
| Alkaline Setting |
1-2-3-4 |
| Acidic Setting |
1-2-3 |
| Purified Setting |
1 |
| Ionized Water output rate |
Max 3~4 liters / 1min |
| Display |
Full Color LED |
| Control Button Type |
Touch Button |
| Filter Life Indicator |
FND Number Indicator |
| Filter Composition |
Activated Carbon, Sediment filter, Vitamin Ceramic Ball, Fiber filter, Bio Ceramic ball |
1) How does the PRIME 901S Undercounter work and what are the benefits?
The PRIME 901S filters and ionizes tap water through a dual-filtration system and continuous electrolysis, delivering alkaline, acidic, or purified water.
- Alkaline water – daily hydration, crisp taste, antioxidant benefits.
- Acidic water – for cleaning, skin care, and sanitation.
- Purified water – filtered but non-ionized, ideal for infants or medication use.
2) What is the difference between the Undercounter and Countertop versions?
- Undercounter: installed under the sink, operated via the sleek PRIME Faucet touchscreen. Saves countertop space and offers a minimalist look.
- Countertop: sits next to the sink with a built-in control panel. Easier to install and move.
➡ Both produce the same water quality, the only difference is design and installation style.
3) How much space and what conditions are required for installation?
- Unit dimensions: approx. 30 cm (W) × 38 cm (H) × 15.5 cm (D)
- Requires a 110/220 V outlet under the sink
- Faucet hole: 33 - 35 mm (standard sink hole size)
- Installation can be DIY, but a plumber is recommended for faucet drilling and proper drainage connection.
4) What performance levels does it offer?
- Flow rate: 3 - 4 liters/minute
- pH range: approx. 7.5 - 10 (alkaline), 3.5 - 6.5 (acidic) (depending on source water)
- 1,600+ programmable pH & ORP levels
- 9 platinum - coated titanium mesh plates for efficient and durable ionization
5) What filters does it use and how long do they last?
The PRIME 901S Undercounter uses a dual - filtration system:
- Activated Carbon + Silver Layer – removes chlorine, heavy metals, fluoride; silver prevents bacterial growth.
- Multi - Stage Sediment & Ceramic Filters – reduce fine particles, enrich water with minerals, extend ionizer performance.
Filter life: approx. 6 months (~20 L/day usage). The PRIME Faucet display shows a filter replacement indicator.
6) Is it compatible with all water types?
- Municipal tap water – fully compatible.
- Well or hard water – pre-filtration recommended for best results.
- RO water – requires a remineralization cartridge, since ionization needs minerals.
7) How is acidic water discharged?
Acidic water is not for drinking. It is automatically discharged into the sink or connected to a drain line. Many users also collect it separately for cleaning, cosmetic, or gardening use.
8) What are the maintenance and running costs?
- Filters: usually replaced twice a year.
- Electricity: very low, consumed only during ionization.
- Optional pre - filter: recommended in areas with hard water.
➡ Total running costs remain low, mostly filter replacements.
9) Is it safe for children or while taking medication?
- Infants & toddlers: should drink purified (non-ionized) water.
- Adults: start with mild alkaline levels and increase gradually.
- Medication: avoid alkaline water 30 - 60 minutes before or after taking medicine.
10) What warranty and certifications does it have?
- Warranty: up to 5 years (depending on distributor)
- Certifications: CE and EMC compliant, ensuring safety and product quality
6 reviews for Water Ionizer PRIME 901S Undercounter
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Free Delivery
All orders over £100 enjoy free shipping
5 Year Warranty
Peace of mind guaranteed 5 years of full product warranty.
14 Day Return
Shop risk-free with our 14 day return policy.
Affiliate Program
Turn recommendations into rewards, sign up as an affiliate today.
Mihai Parnic –
Water ionizer- health in a glass of water
I have purchased this water ionizer and i can say that this was my best investment. The water is pure, clean, ionized, it has a ph of either 8.5 or 9.5 therefore is very healthy. I used to buy plastic bottles of water from Asda, now i don’t buy water anymore. I save money and time and i look after my health. Thank you very much, Alkaline Prime!
Carmen Georgescu –
Eccellente.
Buon giorno. Avendo avuto problemi di salute molto importanti ho deciso di prendere l’apparecchio alkaline prime al consiglio del mio dottore…..posso solo dire che mi sento meglio da quando l’ho uso…..insomma sono contentissima. Poi il prezzo e molto accessibile… Grazie.
Carmen.
Simona Cifor –
Best choice ever! We bought the Alkaline water ioniser a few months ago and we saved a lot of money and effort since we bought it. The water tastes so good and I really feel better. I am very happy that I bought it. Thank you Alkaline Prime!
Adriana –
Amazing
Hi, as a health coach, for me health is my priority. And since I’m drinking alkaline water, my body definitely feels more hydrated and sustains the high level of daily exercise. Also my son who is 13 and a half, since drinking the water he doesn’t suffer with constipation anymore.
Lavinia Orasanu –
Great product,great service.
Nicoleta Milea –
OMG this filter is the BEST,I had every water filter under the sun but nothing like this one.This machine has 2 water filters one for 5000l and the other one for 3000l and the cost to change them is only 50£/filter.You have 4 different types of alkaline water,one normal filtered water and one acid water to use for plant,wounds and face😱.I know only one type of water filters that does that but the cost for that machine is insane.I payed for this machine half of the price🫣.I’m so proud of myself for finding this bargain 🎉.