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Thermaltake

Thermaltake Pacific DIY 16mm PETG Hard Tube Bending Kit

★★★★★4.4 (29 reviews)

Complete PETG hard tube bending kit with mandrels for 45° to 360° bends in custom water cooling loops.

$104.98*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Thermaltake Pacific DIY OD 16mm PETG Hard Tube Bending Kit is designed for PC builders who want to create professional-looking custom water cooling loops using rigid tubing. The kit bundles four 1000mm-long PETG tubes with a set of mandrels covering 45-degree, 90-degree, 180-degree, and 360-degree bends. These mandrels serve as internal supports that maintain the tube's circular cross-section during heating and bending, helping prevent crimps, kinks, and flat spots that can restrict coolant flow or compromise aesthetics.

PETG is a popular material choice for hard tube water cooling because it bends at lower temperatures than acrylic and is less prone to cracking or shattering. The 16mm outer diameter and 12mm inner diameter sizing is one of the most widely used standards in the custom cooling community, ensuring broad compatibility with compression fittings from Thermaltake and other manufacturers. While the kit provides the tubes and forming tools, builders will need to supply their own heat gun and tube cutter to complete the workflow. With enough tubing for a typical single-loop build plus extra for test bends, this kit gives water cooling newcomers and experienced builders alike the materials they need to achieve clean, precise runs.

Key Features

Near Perfect Bends: Essential for making precise bends when using 16mm OD PETG tube

Mandrels: Includes Mandrels for 45/90/180/360 degree bends

PETG tubing for computer water cooling modding

Includes 4 x 1000mm Length Tubes

Specifications

Tube Outer Diameter
16mm (5/8")
Tube Inner Diameter
12mm (1/2")
Material
PETG
Tube Length
4 x 1000mm
Mandrel Angles
45° / 90° / 180° / 360°

Pros & Cons

👍 Pros

  • Includes mandrels for four bend angles (45°, 90°, 180°, 360°), covering the vast majority of custom loop configurations
  • Four 1000mm PETG tubes provide ample material for a full loop build with extra for practice bends
  • 16mm OD sizing is widely compatible with standard water cooling fittings and components
  • PETG material is more forgiving than acrylic, with better shatter resistance and a lower bending temperature

👎 Cons

  • Does not include a heat gun, which is essential for bending and must be purchased separately
  • PETG tubing can develop kinks or uneven walls if heated inconsistently, requiring practice to master
  • 16mm OD is the only size supported, so builders using 12mm or 14mm OD tubing will need a different kit
  • Four tubes may not be enough for complex dual-loop builds that require many bends

Frequently Asked Questions

The kit is designed for OD 16mm (5/8") tubes with an ID of 12mm (1/2"), which is one of the most common sizes used in custom PC water cooling builds.
The kit includes mandrels for 45-degree, 90-degree, 180-degree, and 360-degree bends, covering virtually every angle you would need in a custom loop layout.
The kit comes with four PETG tubes, each 1000mm (approximately 39 inches) long, giving you enough material for multiple bends and some room for practice or mistakes.
Yes. PETG tubes must be heated before bending. A heat gun is required but is not included in this kit—you will need to supply one separately.

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