Pulling cable through conduit presents a challenge because the cable easily twists and gets stuck inside the conduit, and many types of carries cost a lot. Save yourself the expense of foam line carriers or any type of blower or vacuum system by using bag pipers as a cheaper alternative. Rack-A-Tiers bag pipers include a flexible and inflatable bag to attach to a suitable line to pull through duct or conduit and they work with a variety of conduit materials like rigid EMT, IMC, PVC pipe, and many others. When installing wire in a conduit, make sure the conduit is free from water and debris and that you spread lubricant through the duct.