Housing Case Filter Kit for GoPro Hero 7 Hero 6 Hero 5 Black/Waterproof Case Diving Protective Housing Shell + 3 Pack Filter - AliExpress
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
ND Filters for the GoPro Hero5 Black - Freewell Gear - YouTube
Nflightcam Propeller Filter for GoPro Hero5, Hero6, Hero7 Black – Nflightcam.com
GoPro Hero 8 Red Corrective Filter Lens - Dealy
Amazon.com : SOONSUN 4-Pack Lens Filter CPL ND8 ND16 ND32 Filter for GoPro Hero 5 6 7 Black, Neutral Density and Circular Polarizing Lens Filter Kit Lens Protector for GoPro Hero 5 6 7 Black Camera : Electronics
Amazon.com : Polar Pro Hero 5 Black Cinema Series Filters 3-Pack : Electronics
SANDMARC Aqua Dive Filter for GoPro Hero 7, 6 & 5 Super Suit - Red, Magenta & Yellow