You're looking for the LaserScanAngularBoundsFilter. :-)
Admittedly, a list of available plugins/filters is often missing in the Wiki. So this is how I found it:
martin@caprica:~$ rospack plugins --attrib=plugin filters
katana_trajectory_filter /home/martin/ros/stacks/uos-ros-pkg/katana_driver/katana_trajectory_filter/default_plugins.xml
constraint_aware_spline_smoother /opt/ros/cturtle/stacks/trajectory_filters/constraint_aware_spline_smoother/default_plugins.xml
joint_normalization_filters /opt/ros/cturtle/stacks/trajectory_filters/joint_normalization_filters/default_plugins.xml
spline_smoother /opt/ros/cturtle/stacks/trajectory_filters/spline_smoother/default_plugins.xml
isolated_point_filter /opt/ros/cturtle/stacks/navigation_experimental/isolated_point_filter/ipf_plugin.xml
assisted_teleop /opt/ros/cturtle/stacks/navigation_experimental/assisted_teleop/filter_plugins.xml
pr2_navigation_perception /opt/ros/cturtle/stacks/pr2_navigation/pr2_navigation_perception/config/pr2_laser_filters/pr2_laser_filters_plugins.xml
laser_tilt_controller_filter /opt/ros/cturtle/stacks/pr2_navigation/laser_tilt_controller_filter/laser_tilt_controller_filter_plugins.xml
laser_filters /opt/ros/cturtle/stacks/laser_pipeline/laser_filters/laser_filters_plugins.xml
filters /opt/ros/cturtle/stacks/common/filters/default_plugins.xml
Ok, so this is a list of all packages that contain filters, not just the laser filters. Looks like laser_filters is the only interesting package. The command above gives you the path of the plugin configuration XML file, which lists all the plugins defined in that package.
did you solve it? if you did it , could you please help me:/?