These Flume Filters are designed to be quick clamped to the cement for a quick and easy service. All flume filters come with 2 mounting brackets that require you to drill and set cement ground anchors. This will hold your filter in place also acting as anti theft protection. This filter is used to protect areas like retention and detention ponds from harmful pollutants that runoff from parking lots and streets. Give your environment the chance it deserves and protect it today.