The PrimoChill 16mm Rigid SX 90 Degree Fitting Set is for 16mm outside diameter rigid tubing. This fitting combination allows you to make a compact 90 degree bend without altering your tubing. Features SpectraX Powder Coated Diamond Knurled Caps For Color Consistency. Quick and Simple InstallationG 1/4in. thread bright nickel plated brass base for corrosion resistance Compatibility Loop: Non-Aluminum 16mm OD Rigid PETG tubing 16mm OD Rigid PMMA tubing 16mm OD Copper tubing Parts Included 2x 16mm OD Rigid SX Series Fitting 1x Female to Female G 1/4in. 90 Degree SX Extended Elbow Fitting2x Bottom Sealing O-ring2x Tubing sleeve seal insert Installation No installation tool required. Finger tighten only. SX caps are coated with a durable powder coat, but we still recommend handling with care so you can enjoy the finish for years to come. If tools have to be used to loosen, make sure to cover them with a soft material to protect the finish. Warnings: Although aluminum is used for the outside compression ring, no aluminum comes in direct contact with the fluid so mixed metal corrosion is not an issue. CANDY SX FINISHES CAN VARY IN TONE BASED ON SURFACES. KNURLED SURFACES APPEAR DARKER THAN SMOOTH SURFACES. Not responsible for any hardware damage. Use at your own risk