In the table you can compare the specifications of all described models. You can select a high-pressure washer yourself in the relevant section of the catalog.
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Brushless motor, dirt blaster, hose reel, built-in chemical tank.
Average performance with detergent, play between the gun and nozzles.

Perhaps, the Grunhelm GR-2800IM Profi doesn't look as nice as some ultra-modern professional Karcher, but nevertheless, it's a quite quality high-pressure machine with a solid and reliable construction. It has a power of 2800 W. A brushless motor is installed here — a solution providing the possibility of long-term operation under decent load. The pump casing is made of aluminum, and its pistons are made of stainless steel. The pump circulates water at a rate of 520 liters/hour and provides pressure of 210 bar — a very decent pressure with a strong recoil, which is why the gun cannot be held with just one hand during operation as with a domestic class pressure washer. The device weighs 24.5 kg and stands confidently in a vertical position, resting on the body and wheels, so there's no risk of overturning it by accidentally pulling the high-pressure hose or cord. The flexible and durable rubber-fabric hose is 7 meters long and is wound onto a reel for storage.

The package includes two nozzles — a universal one, which sprays water in a "fan" shape, and a dirt blaster, forming a rotary jet. The former is more suitable for quick washing, and the latter — for breaking down large clumps or packed layers of dirt. The nozzles attach to the gun via a swivel threaded connection. Many users are irritated by a slight play in this assembly (the connection cannot be tightened all the way) despite no leaks occurring through it during operation. The device is equipped with a built-in chemical tank. However, it should be noted that the standard fan nozzle poorly sprays detergent (the output is just soapy water without a hint of foam). If this is a critical issue, a simple and inexpensive solution can be found by purchasing a foam generator.

This washer should not be considered as equipment for professional cleaning. It occupies a different niche, and this is noticeable even by the price (several times cheaper than professional Bosch or Nilfisk with similar characteristics). The Grunhelm GR-2800IM Profi is a high-pressure appliance for occasional cleaning in a workshop or on a service station, cleaning paving stones or concrete paths in the yard from deposits, washing farm equipment from dirt, and other similar tasks where high water pressure and high performance are the top priorities.

Brushless motor, high performance, set of four nozzles, foam generator attachment, 10 m hose, telescopic handle.
No significant drawbacks.

The powerful cleaning unit GTM LT890G-3100B can handle any household dirt. A large number of attachments in the standard configuration provides a wide variety of use of the washer.

The model delivers nominal output pressure of around 130 bar. In the maximum performance mode, the water jet pressure reaches up to 190 bar — such a powerful stream of water can easily clean the most stubborn dirt. The washer adapts flexibly to various working conditions thanks to four included nozzles, a dirt blaster, and a foam-generating nozzle, which allows you to get a fairly thick foam.

At the helm of the model is a reliable brushless motor, complemented by a long-lasting aluminum pump. For spraying water, there's an ergonomic gun with the Total Stop system — it automatically shuts off the water flow when the trigger is released. Water consumption of the washer when operating at full throttle reaches 660 liters/hour.

The washer is equipped with a 10-meter high-pressure hose. It is intended to be transported from place to place using two wheels and a telescopic aluminum handle. There are no insurmountable household tasks for the washing unit — it can cope with any task, whether washing garden and vegetable garden tools, homestead and sidewalk paths, or cleaning car and motorcycle equipment.

Brushless motor, built-in chemical tank, allows connection of warm water (50 °C), hose reel, 8 m hose.
High noise level.

The Hyundai HHW 225-700 is one of the most powerful solutions in the line of domestic high-pressure washers. A modern brushless motor and aluminum pump provide high performance — up to 720 liters/hour and water pressure up to 225 bar, allowing it to handle even the toughest dirt.

The model is equipped with a set of nozzles, including a universal fan nozzle and a specialized dirt blaster. The fan nozzle operates in low-pressure mode, providing effective foam generation and gentle cleaning, while the dirt blaster is ideal for removing old dirt and severe contaminants.

Despite its powerful characteristics, the washer is convenient to use thanks to its simple control system and set of transport wheels. The model is also equipped with an 8-meter hose that winds on a reel, making storage and movement of the device even more convenient.

The Hyundai HHW 225-700 is capable of handling the cleaning of large areas and complex contaminants in the shortest possible time, making it an indispensable helper in everyday life. However, the high power of the unit is accompanied by a noise level of 94 dB, which should be taken into account when planning to work in quiet areas or indoors. Overall, the Hyundai HHW 225-700 is an excellent choice for those looking for a reliable and powerful tool for comprehensive cleaning in home conditions.

Brushless motor, easy pressure adjustment, built-in chemical tank, allows connection of hot water (60 °C), hose reel, 13 m hose, telescopic handle.
No significant drawbacks.

The Husqvarna PW 480 is a high-performance "machine" for performing tough tasks in outdoor cleaning. The model is designed for home and yard care, washing automotive equipment, garden tools, and outdoor furniture.

The operation of the unit is carried out by an asynchronous brushless motor with a power of 2900 W. The torque from the electric motor is transmitted to a metal pump with a durable brass head. The pump allows generating water pressure up to 180 bar, and for adjusting the output pressure, a mechanical switch on the front panel of the housing is used.

Separate flow adjustments are provided in the included flat jet nozzle. Additionally, the Low Force Grip spray gun can be fitted with a rotary nozzle used for cleaning surfaces from stubborn dirt deposits. Washing chemicals and foaming agents can be poured into the built-in 2-liter tank. The intensity of chemical supply is adjusted by another switch on the front side of the housing.

The washer is equipped with a 13-meter high-pressure hose with steel reinforcement. Excess hose is wound onto a drum-type mechanism with a convenient handle. The ergonomic use of the model is also enhanced by a telescopic handle and transport wheels. And as a bonus, the unit is provided with a connection to hot water with a temperature of up to 60 °C.

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High performance, 10 m hose, allows connection of hot water (60 °C), built-in chemical tank.
Price, only one nozzle included.

The German company Karcher produces a lot of useful cleaning equipment in a wide price range. The high-pressure washer HD 6/15 M is distinguished by high power, wide functionality, and a considerable price of about $900.

The robust equipment casing has a rational design — it accommodates all the nozzles needed for operation, comfortably places the gun, there is a reel for winding the hose. The removable cover allows quick access to the electrical part of the device. The convenient positioning of the water filter allows controlling the degree of clogging.

The unit operates both in horizontal and vertical positions. The 10-meter hose length is sufficient to wash most objects without moving the unit, but if necessary, just extend the handle and roll it into the desired area, which is not difficult on convenient wheels, despite the rather large weight of the equipment — 29 kg.

The washer's motor has a power of 3100 W and high operating pressure up to 225 bar, making it easy to wash large areas and clean old dirt. At the same time, uninterrupted operation can last up to 3 hours.

The electric motor is air-cooled, and the unit is protected from overload by an automatic pressure relief system. The washer is equipped with the Easy!Lock quick couplings system and the Easy!Force gun with a soft trigger pressure. This greatly facilitates cleaning. The equipment is designed to work with a large number of nozzles, a foam generator, but none of this is included in the kit.

And this is probably another minus of the HD 6/15 M, besides its weight and price. On the other hand, for those looking for a pressure washer to solve large-scale production tasks, this unit will be indispensable. For more modest needs, something simpler and cheaper is enough. For example, Karcher K 7 Premium Full Control Plus.