Stepros pump vaults house a high-head effluent pump that is used for pumping effluent from a septic tank or a dosing tank in a Septic Tank Effluent Pump (STEP) system. Pump vaults create a compartment inside an existing septic tank that can eliminate the need to install an additional pump tank. Each pump vault includes a filter that removes solids larger than 1/8″. Key Features Reduce maintenance time spent pulling and cleaning effluent pump filters Patented self-cleaning design and active filter flush expels accumulated solids from the filter chamber each time the pump runs Designed for easy installation and maintenance. Removeable filter leaves pump and vault in place Effluent filter includes integrated removable float tree Change floats without pulling the filter Available in three different sizes: 45", 54", and 78". *Floats sold separately* Downloads: Pump Vault Brochure