Priced per foot. NuFlow - Double Bladder original patent vinyl bladder; not rubber bladder liner; per foot, This type of cured-in-place pipe liner is NuFlow's original patent where the bladder is made out of a vinyl tube. Specialty large diameter solutions can be made in this technique (fittings and large diameter). *Note: If you need something and do not see it, please ask. We are a specialty manufacturing company.