Nflightcam Cockpit Propeller Filter for GoPro Hero3, Hero3+, and Hero – Nflightcam.com
Flip Filters FLIP7 Pro Package with SHALLOW, DIVE & DEEP Filters & +15 – Reef Photo & Video
Glass Stick-on ND filter for GoPro Session 4/5 – Camera Butter
Polar Pro Aqua Series Red Filter For GoPro Hero3+, Hero4 with Standard Housing
GOPRO NEUTRAL DENSITY FILTER – HERO4 / 3+ – iSOFT
Amazon.com : 4pc Filter Kit For GoPro Hero 3 Large Dive case. Filters come w/ Soft Case. Red, Purple, Pink and Gray Colors. Scuba Green Water, Scuba Tropical Water, ND & Warming
UV Lens Filter Protector Filtro + Standard Protective Frame Case for Gopro Hero 3 3+ 4 Accessories - AliExpress
Amazon.com : CamKix Cinematic Filter Pack Compatible with GoPro Hero 4 and 3+ Includes 4 Neutral Density Filters (ND2/ND4/ND8/ND16), a UV Filter and a Cleaning Cloth. : Electronics
Gopro UV Lens Filter 37mm + Alloy Adapter Ring + Lens Cap Lente Protector Filtro for Gopro Hero 3 3+ 4 Accessories Set filtros - AliExpress
Amazon.com : CamKix Cinematic Filter Pack Compatible with GoPro Hero 4 and 3+ Includes 4 Neutral Density Filters (ND2/ND4/ND8/ND16), a UV Filter and a Cleaning Cloth. : Electronics