Connectors and adapters join hoses, bibs, and accessories that don’t share the same thread. Quick-connect couplers let you swap nozzles and sprinklers without screwing on fittings each time; thread adapters convert between GHT, NPT/MIP, and metric outlets.
Match the thread type and size on each side, and choose brass or stainless for pressure and corrosion resistance. Keep washers fresh to stop drips at every bib and coupling.