Carbonit DUO-HP Business

Item number: 115DUOHPP6

More than a good impression! The Carbonit DUO HP Business is the optimal set for high demands and whenever you want to offer your guests or business customers that certain something. Two activated carbon filter cartridges (GFP Premium D-9) connected in parallel ensure double flow and double retention capacity of pollutants.

659,00 €

including 17% VAT., no shipping costs

1 pc. In stock

Shipping time: 1 - 3 workdays



Carbonit DUO-HP Business under counter water filter

  • With the parallel filter arrangement, both cartridges see the same water flow.
  • Doubling of the max flow rate and retention capacity compared to e.g. VARIO-HP units.
  • Set is suitable for the filtration of the entire cold water flow at the sink tap, aswell as for the water withdrawal via a separate discharge.
  • Optimized filtering performance by using two powerful GFP Premium D-9 filter cartridges.
  • The outstanding filtration results have been proven by many scientific assessments.
  • Important improvement of retention rates at almost the same flow rate compared to the DUO-HP classic set.
  • 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 Business will be delivered with two GFP Premium D-9 filter cartridges:
    • pure activated carbon filter cartridges
    • filter mesh: 0,60 µm; flow rate: 2 * 3.5 = 7 l/min (at 4 bar)
    • high retention rates for heavy metals, pesticides, drug contaminations and chlorine
    • provides the very high protection against bacteria (see assessments)
  • Compatible to all 9 3/4" filter cartridges. Please use two cartridges of the same type.
  • To filter the entire water flow at the sink tap, the combined flow rate of the cartridges must be minimum 7 l/min.
  • 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 Business filter unit can be installed, without costly retrofitting, at any standard water connection in the kitchen or in the bathroom.
  • The filtration system can be connected to a standard two-way sink tap, a separate sink tap, as well as a three-way sink tap.
  • 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 Business 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: 0,60 µm
Flow rate (at 4 bar): approx. 7 l/min
Adsorptive retention rate: Polar pesticides, medical residues, bacteria: > 89%
Adsorptive retention rate: Chlorine: > 93%
Adsorptive retention rate: Lead, Copper: > 83%
Blocks bacteria: Yes
Adsorptive retention capacity: 34 m3
Particle retention capacity: 30 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 Business set contains the following parts
  • one Carbonit DUO-HP (parallel) 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
  • two Carbonit GFP Premium D-9 filter cartridges



Ratings (2)

Average product review

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Total entries: 2
5 from 5 Filteranlage DUO-HP

Wir sind sehr zufrieden mit der Qualität des Wassers.
Der Geschmack hat sich auch verändert.
Der Druckverlust durchs Filtern ist ein kleiner Nachteil, man gewohnt sich aber schnell dran.
Kann Ihre Produkte nur weiterempfehlen.

., 11.06.2019
5 from 5 No more lugging 5 kilo plastic water bottles!

Very pleased with the filters. Very professional company. Fast, safe delivery, very well packaged. The installation was very easy but the most important thing is the result - which has been that the tap water is finally refreshing to drink and we will no longer buy mineral water. Many thanks!

., 03.10.2023
Total entries: 2
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