The best tool to remove bacteria that could remain in or on the spouts.The spout cleaner removes bacteria that may still remain on the spout even after being cleaned with alcohol. It's practical concept is easy to travel with. Can be used for cleaning with alcohol or by backflow. • For 3/16", 5/16" and 19/64 spouts • Resistant and replaceable brush • Sustainable construction, environmental innovation that's made to last • The 3 piece set is sold separately. OPTIONS : • Manual spout-cleaner or with doser-sprayer • With Doser (gun) purple pastic (15ml) including adaptor or red steel doser (20ml) (gun) • 3 liter backpack-sprayer BLACK or CAMOUGLAGE (color) • 15 liter backpack spray tank also available