Customized version of http://www.thingiverse.com/thing:351541

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=351541

Using the following options:

side_slit_opening_ratio = 0.5
side_slit_periodic_length = 4
main_cylinder_height = 20
handle_lower_diameter = 12
head_diameter = 90
filter_height = 2.4
filter_periodic_length = 4
filter_opening_ratio = 0.5
gradient_height = 4
inner_diamter = 78
side_slit_top_margin = 2.4
handle_height = 20
filter_beam_aspect_ratio = 2
side_slit_bottom_margin = 1.2
outer_diameter = 85.7
handle_upper_diameter = 18
head_cylinder_height = 2