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Customer service

Our customer service is prepared to answer your questions regarding your order, payment, shipment, the products, cooling systems, miscellaneous questions and regarding all other topics related to watercooling and modding.

We ask you to at first always contact us via Email to or the contact form. Our technical support can be reached under the address of Please consider that our Spam-Filter may misinterpret messages. We will answer all inquiries.

If something or any problem cannot be solved via Email we can also be reached via telephone. Please consider that our customer service cannot be reached via telephone on Saturdays, Sundays and common German holidays. It can be reached at:

Ordering hotline for consumers: (+49) (0) 5205 99198 0
Regarding telephonic orders or inquiries about the status of your orders:

Mondays: 9.00 - 18.45 o'clock
Tuesdays: 9.00 - 19.00 o'clock
Wednesdays: 9.00 - 19.00 o'clock
Thursdays: 9.00 - 18.45 o'clock
Fridays: 9.00 - 14.00 o'clock

Order status or availabilit ICQ: 631150711

Mondays - Thursdays: 10.00 - 12.00 o'clock und 15.00 - 17.00 o'clock
Fridays: 10.00 - 12.00 o'clock

Commercial customers please directly contact here your personal contact person.

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13mm (1/2') fitting G3/8 with O-Ring (3-Style)
instead of 2,99 €*
only 0,95 €*
Kelkoo - Vergleichen. Kaufen. Sparen. Preisvergleich Meisterkuehler Online Shop Empfehlung