Is the vacuum compatible with my existing piping? Yes, the vacuums are compatible with certified 2’’ standard piping systems F2158. If the piping network is not a 2” standard piping system, a pipe reducer may be required to adjust to different size pipping. By suzanne|2019-07-23T13:25:24+00:00June 14th, 2019|FAQ|Comments Off on Is the vacuum compatible with my existing piping? Share This Story, Choose Your Platform! FacebookEmail About the Author: suzanne