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Six deep-black G1/4 hard-tube fittings with nylon inserts for 13mm tubing

Alphacool

Alphacool 1017626 Eiszapfen PRO 13mm HardTube Fitting G1/4 Six Pack Deep Black

SKU CH-XPTA-HP250 MPN 1017626

Six-pack of G1/4 fittings for 13 mm hard tube with internal nylon inserts that prevent PETG deformation up to 60 °C and a wide compression seal rated for over 8 kg tensile load

  • FeaturesThe new Eiszapfen PRO HardTube fittings from Alphacool are a

Color Black

  • Prevents PETG tube deformation at 60 °C with internal nylon inserts
  • Larger O-ring contact area improves seal and hold on 13mm HardTube
  • Compression seal reinforces tube from inside and outside for secure fit
  • Tested tensile strength over 8 kg stops tube slippage under load
  • Six-pack of G1/4 fittings in Deep Black for custom loops

Alphacool Eiszapfen PRO 13mm HardTube Fittings

The Alphacool Eiszapfen PRO 13mm HardTube Fitting G1/4 six pack in Deep Black is designed for custom liquid-cooling loops that use rigid tubing. It addresses the risk of PETG tube deformation at temperatures around 60 °C. Internal nylon inserts stabilise the tube from the inside while an enlarged contact area on the compression seal reinforces it from the outside.

G1/4 thread compatibility and tubing constraint

Each fitting uses a standard G1/4 thread for connection to water blocks, radiators or reservoirs. The design is specifically engineered for 13 mm outer-diameter hard tubes and the manufacturer notes that Bitspower brand tubing is not recommended. Tensile testing showed the tube does not slip under loads exceeding 8 kg, confirming a secure mechanical lock.

Deep Black finish and six-pack convenience

The fittings feature a Deep Black coating for a consistent aesthetic throughout the loop. Supplied as a pack of six under part number 1017626, they provide enough connectors for a typical CPU-and-GPU loop with a radiator. The combined O-ring and compression-seal arrangement maintains a reliable seal during assembly and long-term operation.

Highlights

  • Prevents PETG tube deformation at 60 °C with internal nylon inserts
  • Larger O-ring contact area improves seal and hold on 13mm HardTube
  • Compression seal reinforces tube from inside and outside for secure fit
  • Tested tensile strength over 8 kg stops tube slippage under load
  • Six-pack of G1/4 fittings in Deep Black for custom loops

Specifications

BrandAlphacool
Model1017626
FeaturesThe new Eiszapfen PRO HardTube fittings from Alphacool are a further development of the well-known, previous Eiszapfen.
Part Number1017626

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Questions about this item

Which tube size does the six-pack of Eiszapfen PRO fittings accept?

The fittings are made for 13 mm hard tube, so choose this pack only if your loop uses that exact outer diameter.

What does the 60 °C deformation point mean for my loop?

PETG tubing can start to soften at 60 °C; the PRO fitting’s internal nylon insert braces the tube from inside, keeping it round and sealed even if coolant reaches that temperature.

How does the G1/4 thread affect compatibility?

G1/4 is the standard thread for water-cooling blocks, radiators and reservoirs, so these fittings screw directly into any component with a matching G1/4 port.

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