b'ExtendYour PipeThe only Pre-fabricated Vent Pipe Extension for your short or broken plumbing stacks. When adding ISO or LWIC, raise your existing vent pipes up to code height in less than 3 minutes, no clamps or couplings required. Works on cast iron or PVC and guaranteed tonever leak!AD HERE A aiv lablein 2, 3,4 and 5www.TUBOS.biz727.504.0633 info@TUBOS.bizPatent #8,752,344'