The STF-BTPS Bow Tie pipe stand from Sim/Tech Filter is designed for use in chamber systems where the distribution piping is suspended above the soil. The stand is independent of the chamber, allowing the pipe to be installed prior to chamber installation and before the squirt test is performed. They install by a quick and easy squeeze-and-release action. The stand can be installed on the pipe before placing it in the trench, and is easily adjusted to desired spacing. They store flat for economical shipping and easy storage. Versions are available to fit 1-, 1 1/4-, 1 1/2- and 3-inch pipe. 888/999-3290; www.simtechfilter.com.