I have been in business for several years and had a friend give me several rolls of trimmer line made by unifit. I have since ran out and recently and bought a roll of ECHO line and do not care for it. 15 feet of chain link fence does a number on ECHO line. It does not last as long as the unifit .105 line does. Does anyone know where to purchase this line? I did a little surfing on the internet and I ran across several speaking as though Northern Tool carries this particular line but I was unable to locate it on there web site. If this line is not purcahasble what is a good suggestion for another brand of line? Any help would be greatly appreciated.