EK-Quantum Torque Color Ring 10-Pack HDC 16 - Red are the interchangeable aesthetic accent rings for EK's new minimalistic 16mm hard-tube compression fittings designed for use with 16mm OD solid tubing such as Acrylic and PETG. They are made of anodized aluminum.

EK-Quantum Torque Color Ring 10-Pack HDC 14 - Red are the interchangeable aesthetic accent rings for EK's new minimalistic 14mm hard-tube compression fittings designed for use with 14mm OD solid tubing such as Acrylic and PETG. They are made of anodized aluminum.

EK-Quantum Torque STC 10/16 Color Rings Pack – Red (10pcs) are the interchangeable aesthetic rings for EK's new minimalistic 10/16mm soft-tube compression fittings designed for use with 10/16mm ID/OD soft tubing. These aesthetic rings are made of anodized aluminum.

EK-Quantum Torque Color Ring 10-Pack HDC 12 - Red are the interchangeable aesthetic accent rings for EK's new minimalistic 12mm hard-tube compression fittings designed for use with 12mm OD solid tubing such as Acrylic and PETG. They are made of anodized aluminum.

EK-Quantum Torque 6-Pack HDC 12 is a fitting multipack containing six EK-Quantum Torque HDC fittings. These are EK's premium 12mm hard-tube compression fittings designed for use with solid tubing such as Acrylic and PETG. With a non-intrusive, yet striking look, and with NO added branding at all. They can be complemented by interchangeable aesthetic color rings, and are an ideal choice for anyone and a perfect match with EK-Quantum series products. To make sure they are undamaged in transport, they are packed in a box cushioned in black foam.

EK-Quantum Torque 6-Pack HDC 16 - Red Special Edition is a fitting multipack containing six Special Edition Red EK-Quantum Torque HDC fittings. These are EK's premium 16mm hard-tube compression fittings designed for use with solid tubing such as Acrylic and PETG. They come with red compression rings and nickel-plated aesthetic rings, which can be changed for another color if the user prefers to. Different color aesthetic rings are sold separately. The fitting barb comes in a satin black finish. They have a non-intrusive, yet striking look, and have NO added branding at all. To make sure they are undamaged in transport, they are packed in a box cushioned in black foam.

EK-Quantum Torque Compression Ring 6-Pack HDC 16 - Red 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.

EK-Quantum Torque STC 12/16 Color Rings Pack – Red (10pcs) are the interchangeable aesthetic rings for EK's new minimalistic 12/16mm soft-tube compression fittings designed for use with 12/16mm ID/OD soft tubing. These aesthetic rings are made of anodized aluminum.

EK-Quantum Torque Compression Ring 6-Pack STC 16 - Red is a premium locking ring made for the EK-Quantum Torque STC 10/16 and 12/16 series fittings. It is not a stand-alone product, requiring an existing Torque fitting's barb.