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
Diving Filter Kit for GoPro Hero 6 / 5 Black - 3 Filters - Frame – CamKix
Diving Lens Filter Kit for GoPro Hero 4 and 3+ - Waterproof Housing – CamKix
3-Pack Filters Kit Magenta Snorkel Lens Red Color Filter for GoPro HERO9 10 11Black Super Suit original Housing Case Accessories - AliExpress
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
Flip Filters FLIP7 Three Filter Kit with SHALLOW, DIVE & DEEP Filters – Reef Photo & Video