BackScatter Flip 3.1 Dive Filter (20-50') Filter FLIP3.1 Bluewater Color Correction Red DIVE Filter for GoPro Hero4, Hero3+ & Hero3 The DIVE filter is optimized for use between 20-50 feet, but is better than no filter above and below these depths. All FLIP3.1 filters can be mounted on the FLIP3.1 frame or on the TOP FLIP as a second filter. Stop torturing your friends with terrible underwater color. This package will take your video to the next level. Weight 3 oz