4" Pre Burster Shell (No Blades)
The 4” Pre-Burster Shell (No Blades) is the body of the 4” Pre-Burster Assembly (TTA-HEAD-4PREB) that is used to burst the old or damaged 3” pipe while pulling in the new 4” replacement pipe. The Pre-Burster slips over the cable, and is pulled along in front of the Head Assembly. The Pre-Burster Shell has two slots for the 4” Blades (TT-HEAD-4BLD) which are retained with Flat Screws (TT-FSNR-BA375F); however, the Shell does not come with these parts.