Proudly Made in the USA and 100% Flame Tested;Tough, durable stainless steel 8-flame Tuning Fork Tip with bendable copper elbow to fit the job! And re-bend the elbow for the next job.;Heat up all the fittings of a heat pump reversing valve at once for easy removal of the defective valve;Remove and install the reversing valve without altering the original copper tube fittings;Double O-Ring seal, so tighten the tip nut firmly hand tight - Do not use a wrench and over-tighten