LANSAS Products, Mfd. by Vanderlans & Sons, Inc. of Lodi, CA, U.S.A. has been making the most innovative, durable and easy to use Pipe Plugs and Pipeline Testing Equipment available for more than 65 years. Used in sanitary sewer, water and other pipe structures, LANSAS offers Single-Size and Multi-Size Pipe Plugs, Flow-Thru Plugs, Air Test Equipment, Manhole Vacuum Test Equipment, High Pressure Test Plugs, and Joint Test Equipment.