ProvenExpert: (4.94) Very Good
  Customer service: (4.91) Very Good
Price/Performance: (4.79) Very Good

Currency

Currency

Entron F-Series Reverse Osmosis System Reviewed – Is the Price-Performance Ratio Right?

28 Mar 2026

In our water filter kitchen, we tested the Entron under-sink osmosis system – a compact, budget-friendly solution for anyone who wants to enjoy clean drinking water directly from the tap. Our goal was clear: How does the Entron perform in terms of filtration performance, operation, flow rate, and water quality in everyday use? And can it compete with premium systems despite its affordable price?

dw

Scope of Delivery & First Impression

The Entron comes as a classic under-sink reverse osmosis system which – as the name suggests – disappears invisibly under the countertop. The scope of delivery includes everything you need for installation, including a two-way stainless steel tap, hoses, and connectors.

Right from the first glance, it's clear that the system is designed for everyday practicality:

Robust materials, clear labeling, and a well-thought-out design.
 The tap offers two dispensing options – pure water or remineralized water. This allows the water to be perfectly adapted to its intended purpose:

  • Pure water for cooking or for the kettle – no limescale, no deposits.
  • Remineralized water for drinking – balanced, fresh, and harmoniously flavored.

Installation & Operation

The Entron impresses with its easy handling. The magnetic front cover can be removed with a single movement, and filter changes are done in seconds. Each filter is clearly labeled – you practically can't do anything wrong. Thanks to the bayonet fitting, the filters can be removed and replaced without tools.

Another plus: After changing the filter, a brief press of the reset button is enough, and the system automatically recognizes that new filters have been installed. No technician, no maintenance costs – the Entron is designed for self-operation.

Technical Evaluation & Features

The Entron is a direct-flow osmosis system – it produces filtered water directly when dispensed, without a tank.
 This prevents water from standing or becoming contaminated, ensuring maximum hygiene.

Inside, a multi-stage filter system operates:

  • Sediment and activated carbon pre-filters remove coarse particles, chlorine, odors, and tastes.
  • Reverse osmosis membrane filters out bacteria, viruses, and pollutants down to a molecular level.
  • Post-filter remineralizes the water for a natural taste.

A vitalization stage is not integrated – but the system can be easily combined with modules such as UMH, Aquaspin or EvoCharge to additionally energize the water. Especially in combination with a UMH module, a complete system is created: filtered, remineralized, and vitalized.

Practical Test: Flow Rate, Volume & PPM Value

In the test, the Entron system delivered flawlessly.
 Half a liter of water was dispensed in about 20 seconds – which corresponds to a flow rate of around 1.5 liters per minute.
 This places it in the solid mid-range and provides consistent pressure even with prolonged use.

The volume during operation was 54 decibels – relatively quiet, no disturbing noise in everyday life.
 Compared to other models, it is exactly where its price range suggests: unobtrusive, quiet, and reliable.

However, the water quality is crucial:

  • Tap water: 327 ppm
  • Filtered water: 7 ppm

An excellent value for this price range. The water tastes soft, clear, and free of any aftertaste. Especially for households with medium water hardness, this is a real upgrade.

Conclusion

The Entron under-sink osmosis system impresses with clear strengths:

  • Easy operation and tool-free filter change
  • Good filtration performance and reliable remineralization
  • Hygienic direct-flow system without a tank
  • Solid flow rate and pleasant volume

It is aimed at price-conscious users who value clean water and uncomplicated technology. If you also want to enjoy vitalized water, you can easily expand the system with a UMH module or comparable technology.

Our conclusion:
 A well-designed, powerful system with a strong price-performance ratio – perfect for beginners and families who value quality.

Tags:
Prev Post
Next Post
ENTRON F-Series Undersink Reverse Osmosis System with Mineralization

ENTRON F-Series Undersink Reverse Osmosis System with Mineralization

1.599,00 €

Mein Wasser-Service GmbH
Braunautal 16
85625 Baiern, OT Berganger
Germany

Germany: +49 08093 606 9870
Switzerland: +41 415623260
Mon - Fri 9 AM - 12 PM and Mon / Wed 2 PM - 6 PM

Customer Service
Important Information
Someone recently bought a
[time] ago, from [location]

Thanks for subscribing!

This email has been registered!

Shop the look
Choose Options
Edit Option
Terms & Conditions
General Terms and Conditions (GTC) 1. Scope The following General Terms and Conditions (GTC), in the version available and valid at the time of accessing the website or ordering goods, apply to the use of this website and the business relationships between "Blue Nature Services GmbH", Grabenstrasse 5B, 6340 Baar, (hereinafter referred to as Blue Nature Services) and its customers. A customer is defined as any natural or legal person who maintains business relations with Blue Nature Services. The GTC, the delivery and payment terms, and the data protection provisions may be subject to adjustments from time to time. Blue Nature Services requests that these provisions be read carefully during each visit to the website and each order of goods. Unless expressly agreed otherwise in writing, these GTC shall apply exclusively. Conflicting, supplementary, or divergent conditions from these GTC require the express written confirmation of Blue Nature Services to be valid. By using this website or placing an order, the customer fully accepts these GTC, including the delivery and payment terms. Should individual provisions of these GTC prove to be or become invalid or unenforceable, the validity of the remaining provisions shall remain unaffected. 2. Information on the website The Blue Nature Services website contains information on topics related to crisis preparedness, emergency survival at home, in the city, and in nature, nutrition, particularly in the form of long-term food, as well as products and services related to these topics. All information on www.Mein-Wasserfilter.com (product descriptions, illustrations, films, dimensions, weights, specifications, and other details) are to be understood as approximations only and do not constitute an assurance of properties or guarantees, unless explicitly stated otherwise. Blue Nature Services strives to provide all information and data on this website correctly, completely, up-to-date, and clearly, but Blue Nature Services cannot guarantee this, either explicitly or implicitly. Despite all care, information may at times not be up-to-date or may be inaccurate. Blue Nature Services reserves the right to make changes or additions to the information provided, as well as prices and the product range, at any time and without prior notice. All offers on this website are subject to change and are not to be understood as binding offers. Blue Nature Services cannot guarantee that the listed products are available at the time of order. Therefore, all information regarding availability and delivery times is without guarantee and may change at any time and without notice. You are solely responsible for seeking medical advice from a doctor as to whether and to what extent you can use the information and offers found on our websites. You use all information at your own risk. 3. Prices Unless expressly stated otherwise, the prices quoted by Blue Nature Services include the statutory value-added tax. Prices are stated in Euros. Any shipping costs will, unless otherwise specified, be charged additionally and must be paid by the customer. Shipping costs are shown separately and are based on the current rates of DHL. All changes, errors, and misprints are reserved; in particular, Blue Nature Services may make price and other changes at any time and without prior notice. Consulting and support services are not included in the sales prices. 4. Conclusion of contract The offers on this website represent a non-binding invitation to the customer to order products and/or services from Blue Nature Services. An order can be placed via the electronic order process in the online shop, by phone, fax, email, or letter. By placing an order, the customer submits a legally binding offer to conclude a contract. Blue Nature Services then usually sends an (automatic) "order confirmation" by email, which merely documents that the customer's offer has been received by Blue Nature Services. A contract is not yet concluded at this point. Orders placed are binding for the customer. Unless explicitly acknowledged otherwise, there is no right of return or withdrawal for the customer. The contract is only concluded upon acceptance by Blue Nature Services or (implicitly) by dispatching the ordered goods. Orders will only be delivered after full payment has been received (exception: delivery against invoice) and if the goods are available. If, after the conclusion of the contract, it turns out that the ordered goods cannot be delivered or cannot be delivered in full, Mein-Wasserfilter is entitled to withdraw from the entire contract or a part of the contract. If the customer's payment has already been received by Blue Nature Services, the payment will be refunded to the customer in full or proportionally. If no payment has yet been made, the customer will be released from the payment obligation. Blue Nature Services is not obliged to provide a replacement delivery in the event of a contract termination. 5. Payment options and retention of title The customer has the payment options indicated in the ordering process available to them. Blue Nature Services reserves the right to exclude customers from individual payment options or to insist on prepayment without stating reasons. Blue Nature Services may charge default interest of 5% per year and a reminder fee of Euro 20.- per reminder in case of late payment by the customer. The customer expressly acknowledges the costs for collection and default damages charged by Blue Nature Services. The products delivered to the customer remain the property of Blue Nature Services until full payment has been received. Blue Nature Services reserves the right to withhold further deliveries or to refuse them entirely in case of non-acceptance of ordered goods or late payment. In such cases, the customer agrees to compensate Blue Nature Services for the damage caused thereby. The customer will only choose the "Payment by invoice" option if they are willing and able to correctly adhere to the payment deadline specified on the invoice and to pay the invoice amount in full. Otherwise, the customer will choose the "Credit card", "Prepayment", or "PayPal" payment option. If the customer chooses the "Payment by invoice" option and does not pay the invoice, the customer expressly accepts the accusation of deliberately causing damage to Blue Nature Services with all the resulting legal consequences and costs. 6. Delivery, inspection obligation, notice of defects, and returns Deliveries are usually sent by post or courier service to the address specified by the customer in the order. Invoicing is done by email or by post. The benefit and risk pass to the customer upon dispatch, as far as legally permissible. If the delivery is undeliverable or the customer refuses to accept the delivery, Blue Nature Services may withdraw from the contract and charge for the costs incurred. The customer is obliged to inspect the delivered goods immediately upon receipt of the delivery and to notify Blue Nature Services immediately in writing by letter or email of any defects for which Blue Nature Services is liable. Returns to Blue Nature Services are at the expense and risk of the customer. The customer must send the goods in their original packaging, complete with all accessories, and together with the delivery note and a detailed description of the defects to the return address provided by Blue Nature Services (in the imprint). If, upon inspection by Blue Nature Services, it is found that the goods have no detectable defects or that these are not covered by the manufacturer's warranty, Blue Nature Services may charge the customer for the costs, the return, or any disposal. 7. Warranty Blue Nature Services strives to deliver goods of impeccable quality. Warranty claims expire one year after delivery of the goods. The limitation period begins with the delivery of the goods. Unless otherwise agreed in writing, the statutory provisions on the beginning, suspension, interruption, and re-commencement of limitation periods remain unaffected. It is at the discretion of Blue Nature Services to provide warranty by equivalent replacement or by refunding the purchase price. Further claims are excluded. Normal wear and tear, as well as the consequences of improper handling or damage by the customer or third parties, and defects due to external circumstances, are not covered by the warranty. The warranty for consumables and wear parts is also excluded. Blue Nature Services cannot provide assurances or guarantees for the timeliness, completeness, and correctness of the data, nor for the constant or undisturbed availability of the website, its functionalities, integrated hyperlinks, and other content. In particular, it is neither assured nor guaranteed that the use of the website will not infringe the rights of third parties not owned by Blue Nature Services.
this is just a warning
Login
Forgot your password? Create account
Shopping Cart
0 items
checkout.liquid