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Six chrome hard-tube fittings with G1/4 threads and 13 mm bore

Alphacool

Alphacool Eiszapfen PRO 13mm HardTube Fitting G1/4 Six Pack Chrome 1017625

SKU CH-KSR6-NW6AJ MPN 1017625

Six-pack of 13 mm G1/4 chrome hard-tube fittings with internal nylon inserts that stop PETG deformation at 60 °C and a wide compression seal tested beyond 8 kg pull force

  • Key featuresThe new Eiszapfen PRO HardTube fittings from Alphacool are a

Color Chrome

  • Prevents PETG tube deformation at 60 °C with internal nylon inserts
  • Larger contact area than standard O-rings gives stronger compression seal
  • Tube reinforced from inside and outside so it cannot slip under load
  • Tested tensile strength exceeds 8 kg for secure hard-tube connection
  • Six chrome G1/4 fittings for 13 mm hard tube in one pack

Alphacool Eiszapfen PRO 13mm HardTube Fittings

These chrome G1/4 fittings are designed for custom water-cooling loops using 13 mm PETG hard tubing. They target builders who want a secure connection that resists tube deformation when coolant temperatures rise. The six-pack supplies enough joints for a typical CPU and GPU loop.

Capacity and headroom for high-temperature loops

The nylon inserts inside each fitting stabilise the hard tube so it cannot soften or collapse at 60 °C, a temperature that can occur under sustained load. A larger contact area on the compression seal and O-ring grips the tube from both sides, and Alphacool reports tensile strength beyond 8 kg. The design keeps tubes firmly seated even when system pressure increases.

Build quality and daily mounting implications

Chrome-plated brass bodies with integrated nylon reinforcement give a rigid feel during installation and resist corrosion over time. The G1/4 thread fits standard water-blocks, radiators and reservoirs without adapters. Note that the manufacturer advises against using these fittings with Bitspower brand tubing, so verify tube compatibility before planning the loop.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $37.99
Pricier than about 75% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameAlphacool
Model name1017625
Part number1017625

Other versions of this model

5 more in the same range

Questions about this item

Will the 13mm fittings work with my existing G1/4 loop components?

Yes, each fitting uses a standard G1/4 thread so it connects directly to any G1/4 port on radiators, blocks or reservoirs you already own.

How can I verify the nylon inserts are gripping the tube correctly after installation?

The tube should not rotate or pull out by hand; Alphacool tested tensile strength beyond 8 kg, so a firm tug that leaves the tube seated confirms the insert and compression seal are engaged.

Does the six-pack include tubing or only the chrome fittings?

The box contains six chrome Eiszapfen PRO 13mm HardTube fittings with pre-installed nylon inserts and seals; compatible 13mm PETG or acrylic hard tube must be purchased separately.

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