Fosmon Red Filter, Underwater, Diving, Snorkel Color Correction Filter for GoPro HERO3+, HERO4 Black and HERO4 Silver Compatible with: GoPro HERO3+, HERO4 Black and HERO4 Silver This red filter brings out better color variation when under water. Provided color corrections when diving or snorkeling in salt water or fresh water. Anti-Scratch plastic filter that is easy to install to your GoPro. Comes along with a straps.