Amazon.com : GoScope (60M) Red Filter - Compatible with GOPRO HERO4 / HERO3+ / HERO3 Dive HOUSING (60M Case Only) Laser Cut Optical Red Filter (See Pictures to Make Sure This FITS
Action Camera Underwater Filter | Gopro Hero 4 Lenses Filters - Go Pro Hero 4 3 - Aliexpress
When to Use GoPro Filters Underwater - Underwater Photography Guide
Amazon.com: CamKix Diving Lens Filter Kit Compatible with GoPro Hero 4, Hero+, Hero and 3+ - fits Standard Waterproof Housing - Enhances Colors for Underwater Video and Photography - Includes 5 Filters : Arts, Crafts & Sewing