| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 2.500" OD; SPIRAL BLADE SCRAPER; LONG SHEARING CUT; SELF-SHARPENING; SPIRAL BLADES GETS UNDER CRUSTED SOOT, ASH AND DIRT; SPRING TENSION ON BLADES EXERTS PRESSURE ON ALL PARTS OF THE TUBE; 0.3750" CENTER ROD AND 0.250" NPT FEMALE CONNECTION FOR PIPE OR ROD ATTACHMENT |