TELESIN Circular Polarizer for GoPro HERO5/6/7 Black GP-FLT-CPL
Amazon.com : LENSKINS MRC ND16 Filter for GoPro Hero 5 Black, Hero 6 Black, Hero 7 Black, AGC Optics Glass, 18-Layer Multi-Resistant Coating Neutral Density Filter, Snug Fit GoPro Lens Filter with
Amazon.com : Underwater Camera Dive Filters for GoPro Hero 5, 6 and 7 Black Super Suit Waterproof Housing Case in Red, Light Red, and Magenta, Professional Color Correcting Photography Accessory : Electronics
Amazon.com : SOONSUN 3 Pack Dive Filter for GoPro Hero 5 6 7 Black Super Suit Dive Housing - Red,Light Red and Magenta Filter - Enhances Colors for Various Underwater Video and Photography Conditions : Electronics
GoPro HERO 9/10/11 - 3 Filter ND Kit - GOPROHERO9NDKIT – The Tiffen Company
ND Filters for the GoPro Hero5 Black - Freewell Gear - YouTube
FLIP11 Two Filter Kit with DIVE & DEEP Filters for GoPro HERO 5, 6, 7, 8, 9, 10, 11