Nflightcam Cockpit Propeller Filter for GoPro Hero3, Hero3+, and Hero – Nflightcam.com
Go Pro Hero 4 ND Lens Filter For GoPro HERO 4 / 3+ / 3 and fit SJ5000 Action Camera accessories - Price history & Review | AliExpress Seller - Good Deals Store | Alitools.io
GOPRO HERO4 SILVER & BLACK WIDE ANGLE LENS+TELEPHOTO ZOOM LENS + FILTER KIT | eBay
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 : Electronics