Differences between Bosch Pressure Washers

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People who are considering purchasing Bosch Pressure Washers should spend some timecomparing Bosch Pressure Washers, because there are subtle differences with all of them. They are more or less equal in terms of quality. However, their specific power levels and uses vary, along with some of their subtler characteristics.

Comparing Bosch Pressure Washers

Comparing Bosch Pressure Washers initially can allow customers to make truly informed decisions.

Comparing Bosch Pressure Washers

This table compares the different Bosch pressure washer models.

 AQT 35-12+AQT 37-13AQT 37-13+AQT 40-13AQT 42-13AQT 45-14 X
Cleaning taskSmall Cars, Motorbikes, Patios, BBQs, Garden FurnitureFamily Cars, Motorbikes, BBQs, Garden Furniture and PotteryFamily Cars, Motorbikes, Patios, Gutters, BBQs, Garden Furniture and PotteryCleaning windows, bikes, large cars and patiosCleaning large cars, driveways and patiosCleaning large vehicles, driveways and patios
Pressure (bar)120130130130130140
Flow Rate (L/hr)350370370400420450
Power (W)150017001700190019002100
Machine Weight (Kg)
Hose length (m)566678
Nozzle3 in 13 in 13 in 1Fixed Fan JetFixed Fan JetVariable Fan Jet
Patio Cleaner
90 degree Nozzle
Wash Brush
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AQT 35-12+

This is the Bosch Pressure Washer that is ideal for some of the smaller cleaning jobs that people might have in mind. Customers who are trying to clean off their patios, outdoor furniture, decks, or driveways will find that the AQT 35-12+ is up to the task. The AQT 35-12+ is also fine for cleaning small cars or motorcycles.

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However, the AQT 35-12+ has a power level of 1500 W, and customers are usually going to need something more powerful than that for some larger jobs. The hose is 5 meters long, which is long enough in most cases but not remarkably so. At only 5.5 kg, this is the lightest of the Bosch Pressure Washers, which is great for people who are using this for relatively small jobs. The pressure bar is 120 and the flow rate is 350 L/hr. As such, this is a powerful enough washer for the right tasks.

The features for the AQT 35-12+ are not especially numerous compared to what customers will find with other Bosch Pressure Washers, since there is no wash brush, no patio cleaner, and no ninety-degree nozzle. The washer is also equipped with a 3 in 1 nozzle. Overall, the AQT 35-12+ should still suffice for the right jobs.

AQT 37-13

The AQT 37-13 can do everything that the AQT 35-12+ can do, but it’s capable of cleaning family cars and pottery as well thanks to its comparatively high pressure, flow rate, and power ratings. The AQT 37-13 is also equipped with the patio cleaner feature.

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Its hose is a meter longer than the AQT 35-12+, which makes the device more effective at cleaning distant areas and objects. The AQT 37-13 also weighs 6.5 kg, making it heavier than the smallest washer in the line, but certainly not the heaviest. The AQT 37-13 has a somewhat wider range of capabilities than the AQT 35-12+, but it is still a relatively modest device comparatively.

AQT 37-13+

The AQT 37-13+ is actually identical to the AQT 37-13 in terms of its pressure rating, flow rate, power level, machine weight, and hose length. They both have 3 in 1 nozzles as well. The AQT 37-13+, as the name suggests, only differs from the AQT 37-13 due to the fact that it has more features.

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With the AQT 37-13+, customers will get the wash brush, patio cleaner, and ninety-degree nozzle. As such, the AQT 37-13+ is more effective at cleaning out gutters and other areas that require a lot of strong and targeted cleaning.

AQT 40-13

The AQT 40-13 has a stronger flow rate and power rating than the AQT 37-13+, although the pressure rating between the two of them is identical at the 130 pressure bar. The hose length is also the same, and the AQT 40-13 is only 0.3 kg heavier. However, theAQT 40-13 is one of only two of the Bosch Pressure Washers to be equipped with a fixed fan jet nozzle as opposed to a 3 in 1 nozzle.

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TheAQT 40-13 is better at cleaning windows than most of the other pressure washers in the Bosch Pressure Washer line. TheAQT 40-13 is equipped with the patio cleaner feature. However, it lacks the wash brush and ninety-degree nozzle. This is a washer that will work well for large cars and large areas, and it still comes in a relatively small and sturdy package.

AQT 42-13

The AQT 42-13 is similar to theAQT 40-13 in most ways, although its flow rate is slightly faster. They are also both equipped with fixed fan jet nozzles, setting them apart from the other devices in the Bosch Pressure Washers line. The AQT 42-13 stands out in terms of weight, since it weighs 11 kg, making it twice the size of the AQT 35-12+.

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Its hose is 7 meters long, making it one of the longer hoses in the line. The device is also equipped with a patio cleaner and ninety-degree nozzle as well, so it has more features than the AQT 40-13. This is a pressure washer that is particularly good at cleaning large cars and other big areas that require attention to detail. This is one of the largest and most fully equipped of the Bosch Pressure Washers. However, it is still not the largest and most fully equipped of all of them, and its most relevant comparison is still the AQT 40-13.

AQT 45-14 X

The AQT 45-14 X is without a doubt the largest, most fully-equipped, and most powerful of the Bosch Pressure Washers in every way. Its ratings are higher than all of the others, but not by a huge margin. For instance, its power rating is 2100 W, which is higher than the others, whose power ratings range from 1500 to 1900.

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Still, the 2100 W rating may make all the difference for a lot of people. The other ratings have similar gaps, making this machine stronger than many of the others, but not to the point where it feels like something from a completely different line.


At 19 kg, the AQT 45-14 X actually is heavier than all of the other Bosch Pressure Washers by a wide margin. Its real claim to fame is still the fact that it is the only Bosch Pressure Washer that has a variable fan jet nozzle. Many customers are going to find that this makes the use of the AQT 45-14 X very different. This device and theAQT 37-13+ are also the only pressure washers in the Bosch line that have all of the other three prominent features: the patio cleaner, the wash brush, and the ninety-degree nozzle.

The AQT 45-14 X is perfect for the people who are really in need of a very strong pressure cleaner that has all of the requisite features that anyone could want.

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