Red Filter is designed for color correction while scuba diving in Blue and Tropical Water. This Filter is very easy to install and remove, simply push it on when you are underwater, then slide it off when you want to shoot above water. It will only work with the standard housing which comes with the GoPro Hero3(WITH 8 SCREWS),and SJ4000 camera. -Protect your camera from water ; -Make your camera work better ; -Prolong your camera's life-span ; -Perfect for Scuba Diving,underwater photography; -Compatible with GoPro HERO 3(WITH 8 SCREWS)/SJ4000 camera; Package included: Red Filter x 1 (GoPro camera and housing are NOT included).