GEEKPRO PRO4 52mm Scuba Dive Red Lens Filter Underwater Diving Snorkelling for GoPro Hero 4, 3+ Compatible with HERO4 HERO3+ Standard Housing ONLY. Pls note, the red filter will be larger for GEEKPRO 2.0/3.0/3.0Plus EOV You will need to tighten the screws on both sides when works with GEEKPRO 2.0 3.0 3.0 Plus EOV Professional color correction for blue and tropical water,Captures vibrant tropical colors from 10 to 80 feet deep Practical and very easy to set up, and amateur and professional alike use them. For the Go Pro users, this elevates their work to a new level of production. The included lens cap protects the front portions of your lens from water dust, and scratches. Full year warranty.