The AIR LOGIC F2100 series swivel fittings are a high-quality product for tube alignment and rotation applications, for fixed barb fittings. They feature a #4,496,204 patent, unique design, offering a 360° rotation. They also contain captured double o-ring seals that serve as complete protection from leakage. They can be ordered in three models: Straight Swivel, Swivel Elbow or Swivel Tee. Barb sizes for tubing sizes of 1/16”, 3/32”, 1/8”, and .170” are available. They are either black nylon, or made out of clear polypropylene. They also feature four o-ring compounds: Buna-N, Ethylene Propylene, Silicone, and Viton.