When the glass in front of an action camera gets marked, the first purchase question is where that glass sits. It may be the cover on the camera body, or it may belong to a separate underwater housing. The difference determines which diagram, part number and manufacturer instructions you need.
Identify the piece you can see
The GoPro Protective Lens Replacement listing identifies AECOV-001 as a cover for HERO13 Black. The maker describes it as protecting the internal camera lens and identifies its water-shedding glass. That is information about the camera-side cover in the listing. It does not tell you which part of an external case you can replace.
GoPro’s separate Protective Housing listing for ADDIV-001 identifies a housing accessory and describes which camera models fit it. Ask for the parts guidance for that housing if the mark is on the case. A listing that mentions your camera model may describe an entirely different assembly from the one that needs attention.
Write down both models before asking for a quote
Provide the camera model and housing reference even if you are certain which piece is marked. Take one photo of the complete assembly and another of the location. Ask the maker or seller to state whether the part quoted belongs to the camera, the case or an accessory attached to the case. If the seller cannot identify a serviceable case part, ask whether the documented option is a service assessment or a complete housing.
When reviewing a quote for a complete housing, ask which door and mounting parts are included and use the maker instructions to determine which door fits the intended conditions. GoPro names a skeleton backdoor among the included items. That package list gives you a reason to specify which configuration you are asking about.
Compare the exact offered parts and the maker’s instructions before returning equipment to water. Ask what checks apply to the complete camera and housing after the work. A cover’s water-shedding description does not establish the condition of the assembled housing. This guide does not specify a repair procedure or an underwater test.
For another camera purchase distinction, read the TRIMIX guide to floating grips and housings. Prepare a TRIMIX gear inquiry with both identifiers and the part name if you need help comparing equipment.
Evidence checked November 13, 2026. Evergreen buyer guide. The two GoPro product pages are undated. By TRIMIX Sports.
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