4" Preburster w/ Dual Blade

The 4” Pre-Burster Assembly is used to burst the old or damaged 3” pipe while upsizing to a new 4” replacement pipe. The Pre-Burster slips over the cable, and is pulled along in front of the 4” Head Assembly. The Pre-Burster Shell (TT-HEAD-4PRE) has two of the 4” Blades (TT-HEAD-4BLD) that are retained with Flat Screws (TT-FSNR-BA375F).