EK-Quantum Torque Compression Ring 6-Pack HDC 16 – Purple is a premium locking ring made for the EK-Quantum Torque HDC 16 series fittings. It is not a stand-alone product, requiring an existing Torque fitting's barb.

The locking ring prevents solid tube to be pulled out of the fitting by compressing the rubber gasket underneath the ring. The grooves on the outside allow for easier hand tightening. The compression ring has cutouts in EK Quantum signature shape allowing for the colored aesthetic ring to be shown. The colored rings are available in many colors and are screwed onto the fitting before the compression locking ring. The aesthetic rings are sold separately.

The compression ring is made of CNC machined aluminum and covered with a high-quality purple finish. Only compatible with EK-Quantum Torque HDC 16mm fittings.

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