Ductwork disassembly just got easier with the new ductwork QuicKonnex system. The bands provide a solid airtight seal and allow for connecting piping of different composition - i.e. plastic to spiral to economy. Normally, small end connectors are used to connect lengths of spiral pipe but do not allow for disassembly when you need to modify your layout. The QuickKonnex bands solve that problem by allowing you to disconnect your pipe by simply unscrewing the clamping screws on the bands. A "must have" for every spiral ductwork layout.