Pneumatic fittings, brass fittings, one touch fittings, push in fittings, speed controller,silencer, compact one touch fittings Quck Fittings, Pneumatic Fittings, Brass Fittings, One Touch Fittings coversone touch fittings, G-thread ... threads are pre-coated sealant. Features of Compact one touch fittings Ideal for pneumatic connections and specifically made for small and compact equipments.