SANDMARC Aqua Filter Kit GoPro Hero 13 vs Think Tank Digital Holster 5 V3: which is safer?
SANDMARC Aqua Filter Kit GoPro Hero 13 is our pick: better on PFAS and on the overall hazard picture.
Our pick
GoPro
SANDMARC Aqua Filter Kit GoPro Hero 13
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Optical glass lens and seals
Confidence
45%
PossibleElastomer seal degradation
PossibleBacterial or algae growth on seals/threads
Think Tank Photo
Think Tank Digital Holster 5 V3
PFAS grade
Excellent 85/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Ballistic nylon, weather-sealed fabric, metal hardware
Confidence
45%
PossibleUndisclosed water-repellent coating chemistry
PossibleCoating degradation over time
Where these two actually differ
- We flag Elastomer seal degradation and Bacterial or algae growth on seals/threads on the GoPro and not on the Think Tank Photo.
- We flag Undisclosed water-repellent coating chemistry and Coating degradation over time on the Think Tank Photo and not on the GoPro.
- The GoPro is Optical glass lens and seals where the Think Tank Photo is Ballistic nylon, weather-sealed fabric, metal hardware, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More waterproof camera & lens protection cases: see the full ranking