Push-In Pneumatic Fittings & Tubing form the flexible fluid distribution matrix that routes compressed air between FRL units, valve manifolds, and pneumatic actuators. Designed for tool-free assembly, the fittings feature internal stainless steel lock claws and nitrile seals that instantly secure polyurethane or polyamide tubing upon insertion, while allowing quick release when pushing an outer collet ring. Key hardware features typically include nickel-plated brass or stainless steel threaded bodies, PBT plastic release collars, pre-applied thread sealant or O-rings, and kink-resistant flexible polyurethane (PU) or chemical-resistant polyamide (PA) tubing runs.