Do not trust everything you hear in the sales pitch. My biggest concern was getting that large tool to compress the fittings in small spaces as I repair systems in residential refrigerators. They assured me that most all refrigerators could be repaired with this technology. After spending almost$4000.00 for the kit I quickly found that most all residential units could not be completely repaired with this technology due to space limitations. I always had to break out the welding torch on all jobs. I was unable to get any help from Bill, the rep for this company and after calling the company directly I quickly determined they also were not willing to support what they sold. My advice for those that do sealed systems on residential refrigerators is to stick with the torch and stay away form this company. SAVE YOUR $$$.