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Ten clear acrylic tubes bent at ninety degrees, thirteen millimetre outer diameter, thirty centimetres long

Alphacool

Alphacool 18565 HardTube 13/10mm 90° Plexi 10x30cm

SKU CH-GGH2-P8GAH MPN 18565

Pre-bent 90-degree Plexi hard tubes for custom water-cooling loops, 13mm outer diameter and 10mm inner diameter, supplied as ten 30cm lengths

  • FeaturesThe HardTube project becomes a reality. Alphacool takes a co
  • Pre-bent 90° angle simplifies loop routing
  • Rigid PMMA tubing gives a structured appearance
  • 13mm outer diameter fits standard hard-tube fittings
  • 10mm inner diameter maintains consistent flow path
  • Ten 30cm pieces cover multiple component runs

Pre-bent 90° hard tube for custom loops

Alphacool 18565 HardTube is a pre-bent plexiglass tube designed for custom water-cooling builds. It suits enthusiasts who want rigid, structured tubing runs without cutting and bending straight stock themselves. The 90-degree angle simplifies tight corner routing inside the case.

Passive component with no thermal load

The tube carries coolant passively and adds no heat, noise or power draw to the system. Flow resistance depends on the overall loop layout rather than the tube alone. Properly installed joints remain leak-free during normal operation.

PMMA construction with 13/10mm dimensions

Each piece measures 30cm in length with a 13mm outer diameter and 10mm inner diameter. The pack contains ten pre-bent sections ready for cutting to final size. Connections require careful alignment; Monsoon-brand fittings are not compatible.

Highlights

  • Pre-bent 90° angle simplifies loop routing
  • Rigid PMMA tubing gives a structured appearance
  • 13mm outer diameter fits standard hard-tube fittings
  • 10mm inner diameter maintains consistent flow path
  • Ten 30cm pieces cover multiple component runs

Specifications

BrandAlphacool
Model1014199
FeaturesThe HardTube project becomes a reality. Alphacool takes a completely new way and clearly sets! The method most commonly used previously for water cooling systems is normal PVC hoses . Alphacool offers another approach to water cooling. The Alphacool HardTube again brings more tidiness into the system which makes a much more structured impression. Brand new plexi tubes with the Alphacool HT connectors make installation very simple, they connect completely sealed together.

Questions about this item

How do I install the pre-bent 90° PMMA HardTubes and what step causes leaks?

Cut each 30 cm tube to exact length, deburr the ends, then push straight into 13/10 mm fittings; the maker notes that angled insertion is the step that causes leaks.

What maintenance or replacement will the 10-piece PMMA HardTube set need later?

Inspect for stress cracks or clouding after long UV or heat exposure; replace any tube that shows whitening or micro-fractures because PMMA cannot be repaired.

What limit appears first when the 13 mm OD HardTubes run under sustained loop pressure and heat?

PMMA softens above its glass-transition temperature, so prolonged high coolant temperatures will deform the 90° bends before fittings or seals fail.

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