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Clear borosilicate glass 90-degree hard tube 16mm OD 11mm ID 20-40cm length

Alphacool

Alphacool 1012171 16/11mm 90° Borosilicate Glass HardTube 20/40cm

SKU CH-GRD9-PRWBA

A 90° borosilicate glass tube with 16mm outer and 11mm inner diameter, available in 20cm or 40cm lengths for rigid water-cooling loops

  • Product colorClear
  • Key featuresAlphacools HardTube family does get an additional sibling. T
  • Borosilicate glass resists chemicals and temperature fluctuations
  • 90° pre-bent shape enables tidy, structured loop layouts
  • 16mm outer diameter fits standard hard-tube fittings
  • 11mm inner diameter maintains strong coolant flow
  • Clear glass delivers brilliant visual appeal

Borosilicate glass hard tube for custom loops

This Alphacool 16/11mm borosilicate glass tube replaces flexible PVC hose in a custom water-cooling build. The rigid 90° section ships pre-bent at 90 degrees with a 20/40cm leg length so no heat-forming is required. It suits enthusiasts who want a rigid, chemical-resistant run between components.

Check outer diameter and bend radius before ordering

Your existing HardTube connectors must accept a 16mm outer diameter and 11mm inner diameter; the 13/10mm size uses different fittings. Verify the 90° pre-bend matches the routing plan because the glass cannot be reshaped after purchase. Confirm the 20/40cm leg dimensions fit the measured distance between blocks.

Borosilicate glass resists chemicals

The material withstands prolonged coolant contact and wide temperature fluctuations without degrading or clouding. Rigid construction holds its shape under continuous pump pressure and vibration better than flexible tubing. Structural stability remains constant during extended gaming or rendering sessions.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $30.99
Pricier than about 76% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Brand nameAlphacool
Model name1012171
Part number1012171
Product colorClear

Questions about this item

Does the 16/11mm 90° borosilicate glass tube include fittings or must they be purchased separately?

The box contains one 16/11mm 90° borosilicate glass HardTube measuring 20/40cm; compatible Alphacool HardTube connectors are sold separately.

How do I choose between the 13/10mm and 16/11mm sizes and the 10/30cm, 20/40cm, 40cm or 60cm lengths?

Match the tube outer diameter — 13mm or 16mm — to your existing fittings, then select a 90° pre-bent length (10/30cm or 20/40cm) or straight length (40cm or 60cm) that fits your loop layout.

What does the 90° bend mean for flow and installation in a custom water-cooling loop?

The fixed 90° angle provides a clean, tidy turn without manual bending, maintaining borosilicate glass chemical resistance and stability while reducing tube clutter inside the case.

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