be quiet! Pure Loop 3 LX

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Product details

The be quiet. Pure Loop 3 LX 360mm is a powerful all-in-one water cooling system designed for efficient cooling of processors. With a radiator size of 360 mm, it offers excellent heat dissipation that is suitable for demanding applications and gaming scenarios. The cooling system is equipped with discreet ARGB lighting, which not only improves the functionality but also the aesthetics of the system. The Pure Loop 3 LX supports a variety of processor sockets, including AM4, AM5 and various LGA variants, making it a flexible solution for different hardware configurations. The combination of quiet performance and customisable design makes this water cooling system an ideal choice for users who value quiet and efficient cooling.

  • Quiet operation for a pleasant user experience
  • Compatible with a wide range of processor sockets, including AM4 and LGA 1700
  • Integrated ARGB lighting for customisation options
  • Efficient heat dissipation through the large 360 mm radiator.

Key specifications

LED colour
ARGBMulticoloured
CPU Water Cooling Type
AiO water cooling
Socket
AM4AM5LGA 1150LGA 1151LGA 1155LGA 1200LGA 1700LGA 1851
Bottom plate material
Copper
Number of fans
3 Fan
Fan dimension
120 mm

General information

Item number
61279370
Manufacturer
be quiet!
Category
CPU water coolers
Manufacturer no.
BW031EU
Release date
25.8.2025
Sales rank in Category CPU water coolers
74 of 1190
External links

Colour

Colour
Black
Exact colour description
Black
LED colour
ARGBMulticoloured

Cooler properties

CPU Water Cooling Type
AiO water cooling
Socket
AM4AM5LGA 1150LGA 1151LGA 1155LGA 1200LGA 1700LGA 1851
Bottom plate material
Copper
Cover material
Aluminium
Number of fans
3 Fan
Fan dimension
120 mm
Max. Speed
2100 RPM
Airflow
105.10 m³/h
Static pressure
2.51 mmH20
Hose length
40 cm
Radiator thickness
27 mm

Origin

Country of origin
France

Voluntary climate contribution

CO₂ emissions
16.79 kg
Climate contribution
CHF 0.40

Product dimensions

Length
397 mm
Width
120 mm
Height
52 mm
Weight
1280 g

Package dimensions

Length
64 cm
Width
21 cm
Height
14 cm
Weight
1.35 kg

30-day right of return
36 Months Warranty (Bring-in)
14 additional offers

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «CPU water coolers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Xilence
    0 %
  • 2.be quiet!
    0.8 %
  • 3.Arctic
    0.9 %
  • 3.Cooler Master
    0.9 %
  • 5.Gigabyte
    1 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 4.Enermax
    2 days
  • 4.Lian-Li
    2 days
  • 9.NZXT
    3 days
  • 9.Thermaltake
    3 days
  • 11.be quiet!
    8 days

Return rate

How often is a product of this brand in the «CPU water coolers» category returned?

Source: Digitec Galaxus
  • 4.Corsair
    4.4 %
  • 5.Alphacool
    4.5 %
  • 6.be quiet!
    4.6 %
  • 6.Enermax
    4.6 %
  • 8.Deepcool
    4.8 %
Source: Digitec Galaxus

Translation: machine translated
Very good88/100
PC Games Hardware Logo
Rank 3 out of 6PC Games HardwareFünf 360er Kompaktwasserkühlungen im TestReleaseMarch 2026
  • PositiveCheap
  • PositiveLighting
  • NegativeLoud pump

The second iteration of the affordable Pure Loop series was particularly impressive thanks to a special pump. This was integrated into the tubes and was whisper-quiet at 0.1 sone under full load. The weak point of the previous version: the fans. The latter have been improved in the new version...