Zyvpee DBTB0838B2S 80mm case fan 12V 2.1A 4-wire 7000 RPM 80 CFM 50 dBA 80x76mm
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Alphacool
Clear borosilicate glass tube for rigid water-cooling loops, 16 mm OD, 11 mm ID, 40 cm long
This Alphacool HardTube is made from borosilicate glass for custom water-cooling loops. It replaces standard PVC tubing with a rigid, transparent line that resists chemicals and temperature fluctuations. The 16 mm outer diameter and 11 mm inner diameter suit builders who want a structured, tidy appearance. It is sold as a single 40 cm straight length.
Borosilicate glass handles the temperature swings found in liquid-cooling systems without degrading. The material resists coolants and additives that can attack plastic tubing over time. Because the tube is rigid, it holds its shape without kinking, so flow remains consistent and noise from pump vibration is not amplified by flexible hose movement. No bending is possible; fixed angles must be used.
This HardTube replaces soft PVC or rubber hoses in open-loop builds where a clean, rigid aesthetic is preferred. The jump is worth it when the builder can plan exact runs and use compatible 16 mm HardTube connectors or 90° angled pieces. It is not for loops that require on-site bending, tight radius turns, or quick reconfiguration without cutting new lengths.
| Brand | Alphacool |
|---|---|
| Model | 1012087 |
| Color | Clear |
| Features | Alphacools HardTube family does get an additional sibling. The new HardTubes made out of borosilicate glass certainly bring a new level of quality into every system. |
Cut the tube squarely with a glass tubing cutter, chamfer the outer edge, then push it fully into compatible Alphacool HardTube connectors — the step most people skip is deburring the inner diameter, which prevents stress fractures when tightening the compression fittings
Borosilicate glass resists virtually all coolant chemicals and temperature cycles, so the tube itself rarely degrades; plan to inspect O-rings in the HardTube connectors during annual loop maintenance and replace the tube only if physical damage occurs
The rigid 40 cm straight length cannot be bent — routing changes require pre-formed 90° elbows (available in 10/30 cm and 20/40 cm variants) or additional straight sections, so layout inflexibility is the practical constraint under sustained use
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