Carbonit DUO-HP Nitrate

Item number: 115DUOHPS9

649,00 €

including 17% VAT., no shipping costs

Old price: 669,00 €
2 pc. In stock

Shipping time: 1 - 3 workdays



Carbonit DUO-HP Nitrate under counter water filter

  • Double effect: Clever combination of two different cartridge types.
  • With the serial setup, the same water flows through both filter cartridges.
  • The water is first freed from nitrate by the ion exchange resins.
  • In a second step, occurs the pollution filtration inside the NFP Premium-9 filter cartridge.
  • The outstanding filtration results have been proven by many scientific assessments.
  • Particularly suitable for regions with high contents of nitrate in the water.
  • Set is conceived for the separate water withdrawal via a separate sink tap or a three-way sink tap.
  • The high-quality and massive base, made from polyoxymethylen, is manufactured entirely in Germany.
  • No drilling: The filter unit can be located decently under the counter, avoiding any compromise on kitchen design.
  • Cartridge replacement is comfortable and easy with the quick couplings.

Compatible filter cartridges

  • The Carbonit DUO-HP Nitrate will be delivered with two different filter cartridges:
  • Cartridge 1: refill cartridge NF2 with reclaimable ion exchange resin - nitrate
  • Cartridge 2: NFP Premium-9:
    • pure activated carbon filter cartridge
    • filter mesh: 0.45 µm; flow rate: 2.5 l/min (at 4 bar)
    • very high retention rates for heavy metals, pesticides, drug contaminations and chlorine
    • provides the highest protection against bacteria (see assessments)
  • Compatible to all 9 3/4" filter cartridges.
  • For hygienic reasons, we recommend replacement of the cartridges every 6 months (according to DIN 1988).
  • Do not miss any cartridge replacement, apply for our non-binding and free of charge filter subscription service.


  • The DUO-HP Nitrate filter unit can be installed at any standard water connection in the kitchen or in the bathroom.
  • The assembly is delivered with an angle T-valve (3/8") and it is thus designed for separate water withdrawal.
  • Hoses and 3/8-inch fittings are enclosed in the set. As required, these can be extended.
  • Only to be used with cold water and must be protected against freezing.

Dimensions and other information on the Carbonit DUO-HP Nitrate filter

Type of connection: Under counter
H x B x T: 305 x 280 x 175 mm
Material: Grilamid TR 90, POM (Hostaform C 2571)
Length of the filter cartridge: 248 mm | 9 3/4"
Filter mesh: 0,45 µm
Flow rate (at 4 bar): approx. 2,5 l/min
Adsorptive retention rate: Polar pesticides, medical residues, bacteria: > 99%
Adsorptive retention rate: Chlorine: > 99%
Adsorptive retention rate: Lead, Copper: > 90%
Blocks bacteria: Yes
Adsorptive retention capacity: 20 m3
Particle retention capacity: 20 m3
Max. useful life of the filter cartridge: 6 months
Suitable for low pressure boilers: Yes
Length of the connection hoses: approx. 800 mm
Connection: 3/8" union nut, Compression fitting (10 mm), NW 7,2 Quick couplings

Scope of delivery

Scope of delivery

This Carbonit DUO-HP Nitrate set contains the following parts
  • one Carbonit DUO-HP (serial) basic module with two quick couplings (DN 7,2)
  • one device key
  • one inlet hose kit containing:
    • one flexible hose (approx. 80 cm long with straight connections)
    • with an angle valve tee (3/8") on one side
    • and a ball valve with nipple (DN 7,2) on the other side
  • one outlet hose kit containing:
    • one flexible hose (approx. 80 cm long with straight connections)
    • with a ball valve with nipple (DN 7,2) on one side
    • and one 90° compression fitting (10 mm) on the other side
  • one Carbonit Refill cartridge NF2 filter cartridge
  • one pack of Carbonit nitrate ion exchange resins
  • one Carbonit NFP Premium-9 filter cartridge
  • and nitrate test sticks


Ratings (3)

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The most useful review

2 from 2 Customers found the following product review helpful
5 from 5 Fantastic Service and Product

We have just purchased a double filter and a tap from Aqua Nobilis. We are extremely happy for a number of reasons. First, we finally got rid of plastic bottles, which was our number 1 reason to purchase. Second, the water is excellent, extremely light and clear. Third, we got a wonderful tap separating the filtered and un-filtered water, we absolutely recommend it. We would also like to thank the Aqua Nobilis team, and specifically Laurent, for their excellent service. Laurent explained everything to us from how to assemble the filter to the type of water and concentration we are getting in our apartment: thank you so much!!!

., 01.06.2018
Total entries: 2
5 from 5 Super product and super service

We are very happy with the quality of the product and the extensive service from Laurant at aqua-nobilis. Only small downside we found was the decreased water flow from the tab. We understand now that this is necessary due to the cleaning process. We could properly solve this with an extra tab which we are considering. We recommend aqua-nobilis if you need amazing service and high quality products

., 26.11.2023
5 from 5 Einfach genial!

Total einfach zu montieren, alles dabei, was man braucht, das Wasser schmeckt vorzüglich und die Anlage ist sehr kompakt und nimmt ganz wenig Platz ein. Unser Monteur (wir können nichts selber machen) war beeindruckt. Wir leben in Spanien, wohin die Anlage auch geschickt worden ist, und die Wasserqualität ohne Filter ist kaum zum Trinken geeignet. Jetzt allerdings ist es eine Freude, aus dem mit bestellten Hahn zu zapfen.

., 15.12.2023
Total entries: 2
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