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Pack of ten black Buna-N O-rings for rigid compression fittings

PrimoChill

PrimoChill Rigid Compression Fitting O-Ring 10 Pack

SKU CH-C90Y-WY4NP

Ten Buna-N O-rings seal the threaded side of compatible PrimoChill rigid compression fittings

  • Tube size3/8 in ID x 1/2 in OD
  • Ten Buna-N O-rings keep spare seals ready for maintenance
  • Threaded-side design matches PrimoChill rigid compression fittings precisely
  • Compatible with RSX, Revolver Series and Ghost Rigid fittings
  • 3/8" ID x 1/2" OD sizing fits standard rigid tubing dimensions
  • Durable Buna-N material resists coolant degradation over time

Replacement O-Rings for Rigid Fittings

This pack contains ten Buna-N O-rings designed for PrimoChill rigid compression fittings. They fit the threaded side of RSX, Revolver Series and Ghost Rigid fittings. The rings create a seal between the fitting and the connecting component. They are intended for custom liquid-cooling loop maintenance.

Buna-N Material and Threaded-Side Fit

Buna-N rubber resists common coolants and retains elasticity under compression. Each ring sits inside the fitting thread to prevent fluid escape at the joint. The material handles typical loop temperatures without hardening quickly. Builders can replace worn seals during routine teardowns.

Limited to Listed PrimoChill Series

These O-rings only suit the three named PrimoChill rigid fitting lines. They will not seal other brands, soft-tube fittings or larger tube dimensions. Buyers using different rigid systems must source the correct ring size elsewhere. Mixed-component loops require verification before assembly.

How it compares

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

Price $10.99
Cheaper than about 68% of the 609 comparable items (median $15.99).

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Specifications

Product
Brand namePrimoChill
Size & build
Tube size3/8 in ID x 1/2 in OD

Questions about this item

What tube dimensions does the O-ring suit?

The O-ring is made for 3/8" ID x 1/2" OD tubing used with PrimoChill rigid compression fittings.

Which fittings are compatible with these O-rings?

They fit PrimoChill RSX, Revolver Series and Ghost Rigid compression fittings.

How are the O-rings installed and what mistake should be avoided?

Seat the O-ring on the threaded side of the fitting; do not stretch or twist it, or the seal will leak.

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