EelVision Red Filter (BG) for GoPro HERO4 HERO3/3+ - Dive Filter/Scuba Diving Underwater Color Correction | Pricepulse
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