DRY 400 Back

Thank you. Your message has been sent.

In our company, we make sure that our customers are satisfied

-we want to provide high-quality tailor-made services.

Therefore, you need to give us permission to process your personal data

Request a quote

Swimming pool dehumidifiers

DRY 400Silver

DRY 300 | 30 m²
DRY 400 | 45 m²
DRY 500 | 60 m²
DRY 800 | 90 m²
DRY 1200 | 120 m²
Pool size
45 m²
58 l

Top extraction - Best efficiency

MICROWELL DRY 400 is comprehensive solution for indoor swimming pool environment control. Monitoring and regulating humidity and air temperature, MICROWELL DRY 400 is suitable for smaller pools, wellnesses or hot tubs. Operating on the condensation principle, it provides constant, reliable and highly effective heat recovery with the highest efficiency. Its low sound emisions and exclusive design makes MICROWELL DRY 400 top innovative solution for indoor pools.

Extended lifetime warranty, click and learn more.

EAN CODE: 0745314271172

Where to buy
Size guide
Pool surface
Extraction rate
Extraction rate
Air flow
Pool room Min/Max
DRY 300 WAVE 30 m² 36 l/24h/60% RH, 30C/ 48 l/24h/80% RH, 30C/ 550 m³/h Min 80 m³ / Max 275 m³
DRY 400 WAVE 45 m² 48 l/24h/60% RH, 30C/ 58 l/24h/80% RH, 30C/ 600 m³/h Min 85 m³ / Max 300 m³
DRY 500 WAVE 60 m² 66 l/24h/60% RH, 30C/ 101 l/24h/80% RH, 30C/ 800 m³/h Min 100 m³ / Max 400 m³
DRY 800 WAVE 90 m² 90 l/24h/60% RH, 30C/ 136 l/24h/80% RH, 30C/ 1100 m³/h Min 135 m³ / Max 550 m³
DRY 1200 WAVE 120 m² 120 l/24h/60% RH, 30C/ 181 l/24h/80% RH, 30C/ 1200 m³/h Min 145 m³ / Max 625 m³

Not sure which dehumidifier

should you choose?
How choose a heat pump?

Key data

Noise Level | DRY 400 - Microwell
Noise Level
42 dB
Heat Recovery | DRY 400 - Microwell
Heat Recovery
1900 W
Power Consumption | DRY 400 - Microwell
Power Consumption
700 W
Air Flow | DRY 400 - Microwell
Air Flow
600 m³/h

Customize your


Impressive Performance

With a remarkable extraction rate of up to 78l/day, this dehumidifier is designed to handle indoor pool areas of various sizes. For both residential and commercial pools, Microwell Dry 400 Silver has the power to maintain optimal humidity level and ensure healthy environment.

Energy-Efficient Humidity Control

Operating efficiently is a core feature of Dry 400 Silver. Experience substantial savings on energy bills while enjoying a consistently comfortable pool atmosphere. Our dehumidifier not only safeguards your pool environment but also your wallet.

Robust Metal Construction for Durability

The product is made of high-quality materials and is corrosion-resistant. Its sturdy construction ensures a long service life, even in the demanding poolside environment.

User-Friendly Control Panel

Taking control of your indoor pool environment has never been easier. Equipped with a user-friendly control panel, the unit allows you to effortlessly adjust settings, monitor humidity and set your requested humidity level for the perfect pool experience.

Exclusive stainless steel

Introducing our premium-grade light fixture featuring a cover crafted from Stainless Steel 316L AISI, setting a new standard for durability and sophistication. Engineered with precision and care, the 316L AISI stainless steel cover ensures unparalleled resistance to corrosion, making it ideal for indoor pool applications. This advanced material not only guarantees longevity but also exudes a timeless aesthetic, seamlessly complementing any space with its sleek and polished finish.

Maximize savings - save by drying

Experience unparalleled efficiency with our cutting-edge pool dehumidifier, boasting a remarkable energy consumption rate of only 0.412 kWh per liter. This revolutionary system employs advanced technology to extract excess moisture from the air with minimal power usage, ensuring highly economical operations. By efficiently controlling humidity levels in your pool area, this dehumidifier not only enhances comfort but also significantly reduces energy costs, making it a sustainable and cost-effective choice for maintaining an optimal indoor pool environment. Dive into savings while enjoying superior performance with our eco-friendly DRY400 Silver pool dehumidifier.


Microwell microLIGHT+ is a unique LED technology designed to quickly and accurately transform current level of humidity into color. This way you can easily understand your current climate. Green light, just like on traffic lights, means that everything is ok. Red light alerts high humidity. Blue light simply tells you that humidity is too low so you can turn the your dehumidifier off and save on electricity.

Technical data and more

If you want to know more just click

Microwell DRY swimming pool dehumidifiers are designed with customer in mind. Built with best materials, modern equipment and carefully executed processes on every step of product development, they offer advanced functionality and the widest selection of accessories for customer‘s satisfaction.

Specially developed dehumidifiers for residential and hotel pools, spa and jacuzzi. If you are looking for a humidity control technology in a private pool, hotel or spa, by Microwell you are in the right place.

DRY400 will prevent condensation on your windows and walls. It will prevent bacteria grow and strange humid smell or damp feeling. It will do its job fully automatically and quietly.

DRY dehumidifiers are leading Microwell swimming pool dehumidifiers used in 30+ countries to mainly control the humidity in pool and spa areas. DRY dehumidifiers are also vastly used for areas that require effective humidity control with a machine which is as quiet and as less disturbing as possible.

DRY400 SILVER is the most privileged model with cover made of stainless steel.

DRY400 range is suitable for pools and water areas with water surface up to 48m2.

DRY400 range is designed for high moisture extraction, low energy consumption and low noise.

DRY400 unit extracts 48 liters of vapor from air per day at typical pool conditions of 30°C air temperature and 60% relative humidity. DRY dehumidifier series is designed to do the job in other possible environments. It provides with a decent extraction of almost 28 liters per day at 5°C air temperature and 80% relative humidity and excellent 70 liters at 35°C air temperature and 80% relative humidity.

Thanks to outstanding design, leading technology and up-to-date concepts, Microwell products achieve up to 36% lower energy consumption than the others. Our product saves you money every day and helps to keep your bill under control.

DRY dehumidifiers are low energy dehumidifiers designed to save energy costs every hour they run. DRY400 model uses on average only 700W of energy. In return the unit provides with an effective humidity control through massive extraction and high heat recovery up to 1900W.

Dehumidify and heat by one device. DRY400 provides with heat recovery of 1900W while consuming only 700W. The unit, while dehumidifies, provides with a free heating which can be subtracted from your current heating system. You thus will save twice while running this machine. Should more heating be required, the unit can be equipped with either LPHW (Low Pressure Hot Water coil) or electrical heater with a combined maximum heating ability of an amazing 5.4kW!

DRY dehumidifiers are installed in:

  • Swimming Pools
  • Spas
  • Hotels and Wellnesses
  • Hot tubs and Jacuzzis
  • Fitness clubs
  • Gyms
  • Museums and archives
  • Warehouses
  • Drying rooms for laundry, breweries
  • Military storages
  • Bakeries
  • Wine cellars

DRY400 range can be mounted on a wall to be out of the way and yet be in position to be in control of humidity. They also are very popular on the mobile stand using 4 fully rotatable wheels providing more space. Should the unit be completely hidden or due to electrical safety it cannot be installed directly inside pool or hot tub area, the dehumidifier can be installed out of pool hall. DRY dehumidifiers can be mounted in a technical room providing humidity control through through-the-wall ducts with 2 elegant grills visible from pool hall. Customers are very pleased by this through-the-wall installation as it is practically noiseless.

DRY400 SILVER comes in an exclusive stainless steel cover made from AISI 316L class of stainless steel designed for pool environment. Material is 100% resistant against typical aggressive substances in pool such as chlorine or salt. Cover is well grounded with all other metal parts of the unit providing full safety. All connections and hanging of the unit are located on its back side, so no cables or hoses stick out of the unit. The unit is one compact piece only 250mm thick so it essentially blends into your pool and saves space.

Control or regulation of the unit is very important for a customer. DRY400 model provides with all possible options you may require. You may go for a classic old school built-in rotary humidistat; you can upgrade to a remote wired humidistat to place it on a wall; you can regulate the unit using remote wireless digital control or simply use built-in digital control. All controls are designed for accuracy and customer comfort.

Noise level is a frequently asked question. DRY dehumidifiers are probably the quietest on the market with only 42dB(A) applying Microwell unique technology ultraQUIET+ eliminating any excessive noises or vibrations. Typical noise level of a quiet room is 30dB(A), typical conversation between 2 people can rise up to 60dB(A). Unit’s 42dB(A) at air flow of 600m3/h, extraction rate of 70 liters and extra heating of 1900W just confirms how unique Microwell machines are.

DRY400 model uses 5 speed AC fan simulating DC energy saving operations.

DRY400 model is gentle to environment and eco-friendly as it uses the most advanced R410A refrigerant.

The unit can supply fresh air in excess of 30% of its nominal air flow, i.e. about 180m3/h. The air is effectively preheated by hot condenser prior it enters pool hall.

Air aggressiveness is very important to a dehumidifier as it typically operates in a chlorine or salty environment. Microwell ensures probably the highest protection of the whole machine and its components. The coils are from anodized aluminum fins coated with GoldFin epoxy finish. Copper pipes are finished with zinc coating for a maximum protection against aggressive substances present in typical pool’s air. All metal parts are galvanized and powder coated, where needed stainless steel or titanium of highest pureness is used.

The units are manufactured in European Union complying with very strict engineering standards. To ensure absolute quality, each unit is individually tested for full operations before it is packed and loaded on truck or container. The factory is certified according to ISO9001, ISO14001 and ISO18001. Each unit is certified against EU standards holding CE certificates and full Conformity. Other compliant standards are RoHS and IP44.

DRY dehumidifier series have widest range of makes and accessories options on the market. The unit can be adjusted and tailored is such a way that seemingly there is no pool or spa or hotel this dehumidifier could not serve. Please see below section of Standard equipment and Accessories for more information.

Typically, the unit is in stock near you. Due to many different ways the unit can be tailored on demand, it may take up to 10 days to deliver the unit to you.

DRY dehumidifiers are amazing due to their micro+ features providing they have by standard. More info micro+.

Humidity is not an enemy when controlled but can cause serious troubles otherwise. Ideal humidity for pool or spa users is when they feel comfortable. This feeling is achieved by an ideal relative humidity from 55% to 65%. Humidity above 70% is detected by condensation on windows and walls and the humidity continuously deteriorates the pool or spa environment. It is also a perfect environment for mould and bacteria to grow. Humidity lower than 45% actually causes a reversed problem to bathers in the form of dry feeling and possible harm to mucous tissue. The innovative series of Microwell dehumidifiers keep the humidity at ideal 55%-65%.

If you need assistance in sizing the right dehumidifier model for you please use our online calculator providing with an instant model type needed for your pool. CALCULATOR

Or click on HOW CHOOSE A DEHUMIDIFIER on the left side of your screen.

DRY 400 SILVER product components

Offering an in-depth look at the Dry 400 Silver, explore its intricate components for a comprehensive understanding of its advanced features.

360 view



Technical data

Pool surface (m²)
Extraction rate (l/24hrs) 30°C/60%RH
Extraction rate (l/24hrs)30°C/80%RH
Air flow (m3/h / Pa)
Noise level at 1m dist. (dB(A))
Power consumption (W)
Heat output (W)
Dimensions netto (w/h/l)
Weight netto/brutto (kg)
DRY 300
from 780x660x255
from 40 to 56
DRY 400
from 780x642x255
from 40 to 56
DRY 500
50 - 60
52 - 66
68 - 101
800 - 1000
44 - 56
from 1245x642x300
from 60 to 90
DRY 800
80 - 90
88 - 90
135 - 136
46 - 58
1600 - 1700
from 1247x950x300
from 100 to 135
DRY 1200
110 - 120
112 - 120
170 - 181
46 - 60
2150 - 2250
from 1247x950x300
from 103 to 136

Manufacturer reserves the right to change the technical data without notice.

Read more

Blog, news and events

Wide colors options

Wide colors options

Enjoy the experience of a custom-made piece of the art dehumidifier in your pool or in your customer's POOL Why would you have only a box shaped machine placed in your swimming pool hall if you can have a piece of furniture designed according to your own taste and needs? Microwell offers the widest range of colors on the market. We normally haveS200€-cotors$n stock. Colouring based on our customers' own choice IS free of charge and can be done typically withinľá8-hourŕ You can specify your desired color according to international RAL color coding.
Read more
PV ready DRY

PV ready DRY

Your Microwell swimming pool dehumidifier is equipped with PV Ready solution enabling you to minimize your energy bill by powering your swimming pool dehumidifier from photovoltaic energy source. You have several options how to operate your swimming pool dehumidifier:
Read more
Microwell introduces lifetime warranty.

Microwell introduces lifetime warranty.

Microwell comes forward and makes a great leap in providing its customers and users of products made by Microwell wider warranty periods. Thanks to reliability of Microwell products, trust and confidence customers and users put into Microwell brand, the swimming pool range “DRY” receives never before seen guarantee commitments in the industry.
Read more

Microwell requests your consent to store cookies on your device for the following uses:

Some personal data will be processed from your device (cookies, unique identifiers and other devices) and may be shared with third party providers, and used by this website or application. Some third party suppliers may use these date accoring to legitimate interest, which you can object to using the options bellow. Your consent can be canceled anytime using the icon below.

Technical cookies

These cookies are necessary, they contain anonymous data to match your browser to your session.

Analytical Cookies

We use Google Analytics to improve our website and services, which receives anonymous, aggregated data about the habbits of our visitors.