The Stanley Filter ESP Kit acts as a packer separating the abrasive material traveling from the formation to the electrical submersible pumps. By attaching a Stanley Fiberglass Filter to the bottom of the ESP Kit, we are able to filter out the solids that travel with the fluid from the formation, allowing only clean fluid to pass through the perforated sub and enter the intake of the electrical submersible pumps. ESP Kits are constructed of a sturdy four foot perforated steel mandrel (pup joint), GW type packer cups with a steel insert ring and a packer cup sub assembly. ECO cups available for corrosive conditions.