This comprehensive assortment includes a wide variety of our most popular composite push-to-connect fittings. The set comes with a 40-compartment storage bin and labeling system for quick and easy identification. Our composite push-to-connect fittings are designed for simple assembly and offer strong resistance to mechanical pull-out. They can be repeatedly assembled and disassembled without losing performance. Select fittings are also available with an optional swivel male pipe thread, intended for installation purposes only.