Inquiry (采购产品): borescope rental I am looking for a borescope or device that I can be used to verify the continuity of the 1 1/2" to 3" dia. pumbling vent lines in my walls. I need to verify where the vent line is not connected. **** Hidden Message ***** mitchel arndt 98001 USA Company: resident E-mail: kcw2216@comcast.net **** Hidden Message ***** kcw2216@comcast.net
