KQ uni-fit one-touch fittings only require hand tightening to assemble and a snug of the wrench to attain a positive seal in 1/3 of the time of conventional fittings. The innovative design allows use of uni-fit one-touch fittings with NPT, NPTF, RC(PT), and G(PF) threads making the uni-fit design both versatile and time saving. KQ fittings give you identical heights when used in manifolds or other side by side applications enhancing the appearance of your equipment.