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Yellow flexible water-cooling tubing coil, 1/2 inch inner diameter, 3/4 inch outer diameter

PrimoChill

PrimoChill PrimoFlex LRT DIY Cooling Tubing Yellow 1/2in ID 3/4in OD 10 feet

SKU CH-M46C-DRS17

Yellow flexible tubing for custom water-cooling loops, 1/2 in ID and 3/4 in OD, 10 feet, made in the USA

  • Product typeCPU Block
  • Product colorYellow

Color Yellow

  • Proudly manufactured in the USA under ISO 9001:2015 standards
  • Trusted by elite system builders worldwide for over 20 years
  • Advanced LRT formulation delivers broad compatibility with closed-loop cooling systems
  • Flexible 1/2in ID by 3/4in OD design simplifies custom loop routing
  • Bundled with System Prep and coolant for immediate installation readiness

Tubing for Custom Water Cooling

PrimoChill PrimoFlex LRT is a flexible tube made for custom PC water cooling loops. It ships as a ten-foot length with an inner diameter of 1/2in and an outer diameter of 3/4in. The product is new and manufactured in the USA. It targets builders assembling their own liquid cooling systems.

Bundled System Prep and Coolant

The package includes System Prep fluid and coolant so the loop can be cleaned and filled without buying separate bottles. Using the supplied coolant avoids the staining that dyed alternatives cause on this tubing. Alcohols, ethylene glycol and other harmful chemicals are prohibited and will void the warranty.

1/2in ID by 3/4in OD Sizing

The tubing fits 1/2in by 3/4in compression fittings or 1/2in barbs with 3/4in clamps. Minor fit issues have been observed with strict-tolerance brands such as Bitspowr and Lamptron. Builders using those fittings should verify compatibility before purchase.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 66% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeCPU Block
Product colorYellow

Questions about this item

How often should the PrimoFlex LRT tubing be inspected or replaced in a custom loop?

Inspect the tubing at each coolant change; replace it if the material turns cloudy, stiffens, or develops surface cracks.

What fitting tolerance issue appears first when the tubing is used continuously with strict-size brands?

Minor sealing problems can occur with strict-tolerance brands such as Bitspowr and Lamptron because their fittings lack the dimensional allowances that LRT tubing expects.

Does the tubing run hotter or consume more power after running all day in a closed loop?

The tubing itself adds no heat or power draw; it simply carries coolant, so loop temperatures and pump power stay unchanged during extended operation.

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