One (1) Qwik System Line Set Flush Tool (1/4") used to flush piping and line sets anywhere there isn't a flare fitting. Made in the USA by Qwik Products/Mainstream Engineering. A durable flush tool designed specifically for use with QwikTM System Flush®(QT1100) but can be used for other brands/products. http://www.qwik.com/products/qt1105-can-access-valve/