Discrete fluid-line connections and supports, including elbows, tees, crosses, reducers, nipples, sockets, unions, flanges, collars, ferrules, plugs, end caps, hose tails, quick couplings, tapping connections, dismantling joints, repair clamps and pipe holders. Includes hygienic and high-purity connection systems and connection-specific accessory sets. Excludes shaft couplings, structural tube-frame connectors, separately sold seals, active flow-control devices, and complete hoses or piping assemblies.