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
Diving Filter Kit for GoPro Hero 6 / 5 Black - 3 Filters - Frame – CamKix
FLIP FILTERS DEEP Underwater Color Correction Filter for GoPro HERO 3, 3+, 4, 5, 6, 7, 8, 9, 10, 11 - FLIP10
3 Pieces/ Set Red /Pink /Purple Filter Lens for Gopro Hero 8 Gopro Accessories Set - China Gopro Camera and Action Camera price | Made-in-China.com
FLIP11 One Filter Kit with DIVE Filter for GoPro HERO 5, 6, 7, 8, 9, 10, 11
4-Pack Diving Filter Kit for GoPro Hero 3 - Directly Attach on GoPro Lens - Enhance Color for Underwater Video and Photography for Diving, Snorkeling, and Scuba Diving - Walmart.com
Dyron Red Filter for GoPro 3
PolarPro Red Filter for GoPro Hero3 / Hero3+ / Hero4 60m Dive Housing