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Clear borosilicate glass tube 13mm outer diameter 10mm inner diameter 40cm length

Alphacool

Alphacool 13/10mm Borosilicate Glass HardTube 40cm

SKU CH-3P9T-2J4KB

A 40 cm clear borosilicate glass tube with 13 mm outer and 10 mm inner diameter for rigid custom water-cooling loops

  • Product colorClear
  • Key featuresAlphacools HardTube family does get an additional sibling. T
  • Borosilicate glass resists chemicals and temperature swings
  • 13 mm outer and 10 mm inner diameter for standard fittings
  • Rigid tubing creates a cleaner, more structured loop layout
  • 40 cm straight length suits typical component spacing
  • Compatible with Alphacool HardTube connectors for secure assembly

Alphacool 13/10mm Borosilicate Glass HardTube 40cm

This borosilicate glass tube replaces standard PVC hose in custom liquid-cooling loops. It measures 40 cm long with a 13 mm outer diameter and a 10 mm inner diameter. The clear, rigid construction resists chemical attack and temperature swings while giving the build a clean, structured look. It is sold individually as model 1012077.

Suits rigid-loop builders; not for flexible routing

The tube suits builders who want a permanent, precisely measured run between components and who can plan every bend in advance. It does not suit anyone who needs to route around obstacles without angled fittings, because the glass cannot be bent by hand. Buyers who want a pliable hose that can be cut and shaped on the fly should look elsewhere.

13 mm outer / 10 mm inner diameter decides fit

The single specification that determines compatibility is the 13 mm outer and 10 mm inner diameter. Only fittings designed for this exact size will seal correctly, so the tube works exclusively with matching HardTube connectors. If your loop uses 16/11 mm or any other diameter, this tube will not fit.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 87% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameAlphacool
Model name1012077
Product colorClear

Questions about this item

Which outer-diameter fittings must I already own for the 13 mm tube?

You need 13 mm outer-diameter compression fittings — Alphacool HardTube connectors in the 13/10 mm size — to seal each end of the tube.

Will the 13 mm glass tube mate with 16 mm fittings I kept from an earlier build?

No — the 13 mm outer diameter only fits 13 mm fittings; 16 mm fittings are for the larger 16/11 mm tube.

How can I confirm the tube is seated correctly after assembly?

Press each end fully into its 13 mm fitting until the tube bottoms out, then run a leak test; no coolant should escape at the joints.

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